QUICK REFERENCE INDEX - Who-Sells-it

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QUICK REFERENCE INDEXBrake Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-14 Breathers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Briggs Motors & Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31-41Camshafts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Cassettes & Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Carburetor, Parts & Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Chassis Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Clutches and parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-21 Connecting Rods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4Crankshafts, Crank Bearings, Crank Gears . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Cylinder Heads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,10,11Drive Line Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-20Drivers Suits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48Engine Accessories/Headers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21,30Engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Flywheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11Fuel Additives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57Fuel & Oil Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-28Gaskets & Sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-25Guide & Seat Tooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51Helical Coil Thread Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50Hubs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45-46Motor Mounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Oils & Lubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53Stroker Kits for OHV Engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-11Pedals Assemblies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Pistons, Rings & Wrist Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Porting & Polishing Tools & Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52Rims, Front & Rear. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46-47Roll Bar Padding & Seat Cushions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49Safety Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Shop Equipment & Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50-52Side Covers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Special Reference Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60Starters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Steering Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Tachometers & Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-29Tire Treatments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54-57Torque Converters & Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-19Trailer Organizers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58-59Valve Spring Compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51Valve Train Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-23Wheel Hubs, Front & Rear. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45-46Wheels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46-47Yamaha OHV Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42-44

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ARC Pro Series Billet Connecting RodsCNC machined from aircraft grade 7075 T-651 aluminum, our rods have been tested to an average of 12,500 rpm and are the lightest available. They are the only forced oiling rods on the market. Key features include an oil groove in the crank bore that is fed through a channel in the integrated dipper and an oil groove in the wrist pin bore that provides a reservoir of lubricant to the wrist pin. Bearings & bolts are included. Stroker rods are clearanced for use with up to .563 stroke and .437 lift billet cams ( may require block modifications).

Standard Stroke Stroker

ARC Billet Enduro Connecting RodsThe ENDURO SERIES rods are CNC machined from aircraft grade 7075 T-651aluminum. The same features as our other billet rods, but without the forced oiling dipper.

Part # Length6371 4.225 6373 4.275 6375 4.325 6377 4.375 6367 4.425 6369 4.4756365 4.625

Part # Description6392 Bearing (1.001)Standard6392-2 Bearing (.999) -.002 undersized6392-5 Bearing (.996) -.005 undersized6392-10 Bearing (.991) -.010 undersized6393-0 Bearing (1.004)+.003 oversized6398 Stroker Bearing (.875) Standard6399 Stroker Bearing (.865) undersized

Standard Stroke for .9985" crank Part # Length6348 3.870 WKA& IKF Legal6350 3.875 WKA & IKFLegal6352 3.880 IKF Legal6356 4.3256358 4.3756360 4.4256362 4.4756364 4.500

Part # Length6328 3.870 WKA & IKF Legal6330 3.875 WKA & IKF Legal 6332 3.880 IKF Legal6336 4.325 6338 4.375 6340 4.425 6342 4.4756344 4.500

.9985” .875"Stroker

Crankshaft Journal Diameter

Part # Length6212 4.225 6213 4.275 6214 4.325 6215 4.375 6216 4.425 6217 4.4756220 4.225**6222 4.325**6223 4.375**6224 4.425**

**these rods use a .590 wrist pin, and require an aftermarket block

FLATHEAD BILLET CONNECTING RODS

Stroker for .875" crank Part # Length6370 4.2256372 4.275 6374 4.325 6376 4.375 6368 4.475

Part # Description6380 Standard Rod Bolt set w/washers6381 ARP Rod Bolt set w/washers6383 ARP Stroker Rod Bolt set w/washers6386 HP washer set w/chamfer for ARP bolts6387 Standard washer set w/o chamfer for- standard bolts only.

Rod Bearings Rod Bolts & Washers

Standard

ARP

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Billet Connecting Rods for OHV EnginesCNC machined from aircraft grade 7075 T-651aluminum, these rods have been torture tested in ultra high perfor-mance engines and have many times outlived the power threshold of both blocks and cranks. Key features include an oil groove in the crank bore and an oil groove in the wrist pin bore that provides a reservoir of lubricant to the wrist pin.. When engine design permits, our OHV rods have our exclusive forced oiling scoop dipper. Bearings & custom designed high tensile bolts are included. (6246 rod material is proprietary)

OHV BILLET CONNECTING RODS

Briggs OHV Billet I-Beam Rods

Part No. Description6240 3.625" Stroker .490 wrist pin

6534 Crank gear for stroker Animal

6246 3.287" HD Stock Length Enduro "lite" no bearing

6247 3.287" HD Ltd Modified Stock Length Enduro "lite"

6248 3.74" HD Modified Long Enduro .490 wrist pin

6249 3.287" HD Ltd Modified Stock Length Enduro "beefy"

6250 3.287" Stock Length w/scoop

6251 3.287" Stock Length Enduro

Part No. Description6252 3.375 Stock Length w/scoop

6253 3.375 HD Stock Length Enduro

Part No. Description6230 3.875" Stock Length w/scoop

6232 3.9375 Long w/scoop for pre-'07 piston w/1/16" cut off top

6233 Stroker for pre-'07 stock piston w/ 1/16" cut off top

6235 Stroker for JE pistons with 3" to 3.25" bore

6237 Stroker for JE "Star" piston with 3-5/16" bore

Part No. Description6275 4.134" Stock Length no dipper (2 required)

6276 4.262" Long no dipper (2 required)

Part No. Description6395 Stock Stroke standard for 6247-6253

6392 Stroker for Animal and Intek 305, 6240 & 6233-6237

6397 Intek 305 Stock Stroke for 6230 & 6232

6390 Vanguard for 6275 & 6276

Part No. Description6381 ARP 1" Rod Bolt Set (6248-6253)6383 ARP 1 1/4" Rod Bolt Set (6240,6230,6232,6275,6276)

Bearings

Bolts

Briggs Animal-Intek 206-World Formula

Briggs Intek 190 (F200)

Briggs Intek 305

Briggs Vanguard 14,16,18, & 20HP V-twin

Other OHV Billet I-Beam Rods

Part No. Description6259 3.324" HD Stock Length Enduro (F200)

Part No. Description6270 3.303" GX200 - Stock Length w/scoop (F200)6272 4.41" GX340/390 - Stock Length w/scoop

Part No. Description6262 3.425" XKE - Stock Length w/scoop (F200)6259 3.324" CS6pro - HD Stock Length Enduro (F200)

Part No. Description6391 Honda GX340/390 (6272)

6393 Yamaha and Kohler CS6pro (6259,6260,6262)

6394 Honda GX200 (6270)6396 Kohler XKE (6262)

Part No. Description6381 ARP 1" Rod Bolt Set (6259,6260,6262,6270)6384 5/16-24 Honda GX340/390

Yamaha - YZR-F1

Bolts

Bearings

Kohler

Honda

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Vertical Crankshaft Billet Rods (no dipper)

Part No. Description6278 5.00" uses .490 wrist pin for .530 comp hgt piston

6560 Brass "syncro substitue" weights needed for #62786200 "Dogbone" billet syncro counterweight link

Part No. Description6280 5.125" Stock Length

6281 5.175" allows cutting .050" from stock piston top

6561 Brass "syncro substitue" weights for Model 286200 "Dogbone" billet syncro counterweight link

Part No. Description6238 4.50" Stock Length (2 required)

Part No. Description6275 4.134" Stock Length no dipper (2 required)6276 4.262" Long no dipper (2 required)

Part No. Description6284 3.95" Stock Length for 5/8" wrist pin

6285 3.95" Stock Length for .688" wrist pin6287 4.45" Long Rod for 5/8" wrist pin

Part No. Description6288 4.75" Stock Length fo 5/8" wrist pin (2 required)

Part No. Description6290 Briggs Model 19 for 6278

6291 Tecumseh Formula for 6284, 6285, 6287

6293 Tecumseh V-Twin for 6288

6294 Briggs V-Twin Intek for 6238

6397 Briggs Model 28 for 62806390 Briggs Vanguard for 6275 & 6276

Part No. Description6383 ARP 1 1/4" Rod Bolt Set (6238 & 6274 through 6287)6384 5/16-24 Model 28 (6288)

Briggs Model 19

Briggs Model 28

Briggs V-Twin Intek

Briggs V-Twin Vanguard 14,16,18, & 20HP

Tecumseh Formula 8 & 10 HP

Tecumseh V-Twin

Bearings

Bolts

BILLET RODS FOR VERTICAL CRANKSHAFTSBillet Connecting Rods for Vertical Crankshaft EnginesCNC machined from aircraft grade 7075 T-651aluminum. These rods have become the favorites of the Lawnmower Racing scene. Key features include an oil groove in the crank bore and an oil groove in the wrist pin bore that pro-vides a reservoir of lubricant to the wrist pin. Bearings & custom designed high tensile bolts are included.

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ARC Billet CrankshaftsMachined from the hardest, toughest material ever used for small 4 stroke engines. Features a true 1/8” journal radius for strength and durability. Also features airplane wing style counter wieghts that are proportionaly designed for superior balance.

Part # Description7/8” Journal Crankshafts6589 +.4506590 +.450 w/o cam clearance6591 +.5636592 +.563 3 x 3 (balanced for 3” bore)6593 3 x 3 w/o cam clearance6598 +.563 with Splined PTO

1” Journal Crankshafts6580 Flathead Stock or .237Animal stroker6582 +.1506584 +.2006595 +.563 stroke - w/o cam clearance 6596 +.563 stroke w/o cam clearance**6597 +.563 stroke with Splined PTO

OHV Briggs Animal and 305 Crankshafts6580 .237 Animal stroker6585 305 Stroker for ARC 6235 Rod6586 305 Stroker for ARC 6236 Rod

#6597 With the splined PTO uses the same 1” i.d. bearing on BOTH PTO and Flywheel sides.

Important note on 1” Journal Stroker Crankshafts:The 1” journal crankshaft WILL NOT FIT in any of the BlockZilla blocks. It was designed for experienced engine builders. Existing connecting rods MAY REQUIRE MODIFICATION to clear the cam. The crankshaft itself may require some modification.

Part # ID OD Width6550 .792 1.850 .5006552 .792 2.048 .5006554 .875 2.048 .500

Crankshaft BearingsExcellent quality aftermarket “Trick” ball bearings can be used with a varietyof stock Briggs and aftermarket single & dual bearing crankshafts.

Crankshaft GearsThese hardened gears are necessary for stroker Briggs 305 and Animal OHV engines.

Part # Engine6534 Stroker Animal Crank Gear (when using ARC#6580 or Briggs#555204 crankshafts)6535 Stroker 305 Crank Gear (when using ARC#6585 or 6586 crankshafts)

BILLET CRANKSHAFTS & ACCESSORIES

6597

6580

6592

**Crank #6596 is tapped for a 3/8-24 clutch bolt.

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Billet Cylinder Heads for 5hp BriggsPrecision machined from 6061 T-6 aluminum, these heads are designed for maximum flow. The “S” prefix (eg. S400) denotes the depth of the combustion chamber for valve clearance.

Part # Description6010 S400 Head, 33cc flat6012 S375 Head, 31cc flat6014 S350 Head, 29cc flat6016 S325 Head, 27cc flat6018 S300 Head, 25cc flat 6026 Billet Head, Finned Open Big Valve S4376027 Billet Head, Finned Open Small Valve S4376030 Cylinder Head Kit BlockZilla S4376031 Cylinder Head Kit BlockZilla 2 S4376033 Cylinder Head Kit BlockZilla 3 S437

Accessories:6003 Head bolt kit, all flat models

6030-33

6026/6027

6010-6018

ARC Billet Dual Bearing SidecoversBy placing two bearings side-by-side on the PTO side of the crankshaft, we reduce crankflex by 40%. Flex is a major cause of crankshaft breakage. Includes cam bearing support, upper oil fill, lower oil level check port, side mounted oil drain plug, threaded bosses for easy removal, and a full perimeter O-ring seal except 6054 and 6056 which huse the stock sidecover gas-ket.Part # Description6040 Blockzilla sidecover kit6052 Raptor sidecover kit (for .997" PTO "Raptor" crank only)6055 Billet oil fill cap6054 Animal/Intek190 Sidecover Kit (not dual bearing)6056 Intek 305 Sidecover Kit (not dual bearing)1090 Bearing for cam6040C O-Ring for Blockzilla Sidecover6052C O-Ring for Raptor Sidecover

BILLET SIDECOVERS

BILLET CYLINDER HEADS

6055

6054-56

6040-52

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STEERING COMPONENTS1300 Quick Release Steering Wheel HubNo more hassle getting in and out of the car. Just push the spring loaded pin and take the wheel and hub with you.Unit has 3 on 1.600” bolt pattern for mounting the steering wheel.Includes the following:

1350 Butterfly Steering WheelMachined from 1/4” 6061 T-6 aluminum and precisionformed, these wheels have a brushed finish and featurefinger grips to insure positive control and have standard3 on 1.600” bolt pattern.Order part # 8050 for mounting hardware kit.

Part # Description1300A Stationary hub1300B Release hub1300C Release pin1300D Release pin spring1300E Hub mounting bolt kit1300F Hub mounting nut kit1300G Release pin screw

Part # Description1150 3/8-24 male R/H thread1155 3/8-24 male L/H thread1160 5/16-24 male R/H thread1165 5/16-24 male L/H thread

Tie Rod EndsThese aircraft quality rod ends are available with left and right hand threads in two different sizes and accept the same diameter eye bolts as their shaft. (jam nuts included)

Rack & Pinions for Jr. DragstersPrecision machined billet aluminum housing with a single piece steel rack and integrated rack gear with 5/8”diameter shaft. Choose from two available models: one with a horizontally threaded (3/8-24 R/H) rack or thevertically drilled (3/8” diameter) rack. Overall dimensions: 6-7” wd.2-3/4” hi. x 1-1/2” dp. with 320° rotation lock to lock and 3.500” travel

Part # Description1400 Rack & Pinion (threaded)1410 Rack & Pinion (drilled)8030 Optional installation hardware kit

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BILLET FLYWHEELS & IGNITIONARC Billet FlywheelsCNC machined from 6061 T-6 aluminum, the main feature of this design is a steel crankshaft hub that allows for timing changes at 1° increments in as little as 90 seconds without the use of offset keys or having to take the motor apart.

Other outstanding features include:• Neodymium (rare earth) magnet.• A 17% increase in voltage produced at the coil and a more accurate discharge of that current due to the aluminum body.• A 38% overall increase of the voltage produced by the coil.• The solid billet versions with or without hubs are NHRA accepted.• ALL ARC Flywheels are SFI Certified making them the ONLY SFI- approved flywheels available for the small 4 cycle engine market.

NHRA Jr Dragster Flywheels - NO FINSPart No. Description6604 B&S Raptor/Blockzilla 5hp dia. 3.7lb6603 B&S Raptor/Blockzilla 3hp dia. 2.8lb*6612 B&S Raptor/Blockzilla 3hp dia. 2.8lb (For MSD Ignition only)6601 B&S Raptor/Blockzilla 3hp dia. 2.5lb NO HUB*5990 *Coil bracket for 6603 & 6601 (required)

Lawnmower Racing (Vertical Shaft) WITH FINSPart No. Description6609 B&S Model 19 - 5.3lb w/starter gear (uses B&S 5hp coil)555075 B&S 5hp coil for 6609 (required)

6611-28 B&S Model 28 - 6.95lb w/starter gear*6611-IV B&S Intek V-Twin - 6.95lb w/starter gear*808726 *Starter used with 6611-28 & 6611 (required)

6611-VG B&S Vanguard V-Twin 14-20HP 6.95lb w/starter gear808726 *HD Starter used with 6611-VG (not mandetory)

6609-TF Tecumseh Formula 8 & 10 HP 5.0 lb w/starter gear (uses B&S 5hp coil)555075 B&S 5hp coil for 6609-TF (required)

6611-TT Tecumseh V-Twin & 17 HP 6.95lb w/starter gear (uses B&S Model 28 coil)492341 B&S Model 28 coil for 6611-TT (required)

6611-KW Kawasaki MDFB 460 6.95lb w/starter gear (uses B&S Model 28 coil)492341 B&S Model 28 coil for 6611-KW(required)

"Stock" timing (23°BTDC) on adjustable ARC Flywheels is with the index mark all the way to the negative side when using a standard key.

Non-adjustable ARC Flywheels have been designed with advanced timing. A standard key should net approx. 30° BTDC

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Karting Flywheels - WITH FINSFLATHEAD

Part No. Description6608 B&S Raptor/Blockzilla 5hp dia. 4.9lb - WKA / IKF Ltd Mod6607 B&S Raptor/Blockzilla 3hp dia. 3.6lb - RWYB/outlaw/UAS*6605 B&S Raptor/Blockzilla 3hp dia. 2.75lb - RWYB/outlaw/UAS* NO HUB5990 *Coil Bracket for 6605 & 6607 (required)

OHVPart No. Description6606 B&S Animal/Intek 190-206 stock dia. 4.3lb - F200/outlaw6614 B&S Animal (gen2+) /Intek 190-206 5hp dia. 4.5lb - F200/outlaw6614-SA B&S Animal STROKER (gen2+) /Intek 190-206 5hp dia. 4.5lb - outlaw/UAS6613 B&S World Formula 5hp dia. 5.45lb - F200/outlaw w/ starter gear6608-305 B&S Intek 305 5hp dia. 4.9lb - RWYB/outlaw/UAS*6614-305S B&S Intek 305 STROKER 5hp dia. 4.5lb - outlaw/UAS*5992 *Coil Bracket for 6608-305 & 6614-305S (required)

6608-Y Yamaha YF200-R1 stock dia. 4.9lb - F2006608-H Honda GX200 stock dia. 4.9lb - F2006614-K Kohler XKE 5hp dia. 4.5lb - F200 (uses Animal coil)*5989 *Coil Bracket and standoff kit needed for 6614-K (required)

555530 Animal coil for 6614-K (required)

6611-TT Tecumseh Star 6.95lb w/starter gear - Star (uses B&S Model 28 coil)492341 B&S Model 28 coil for 6611-TT (required)

Bandoleros / Mini Cup WITH FINSPart No. Description6611-VG B&S Vanguard V-Twin 14-20HP 6.95lb w/starter gear*808726 *HD Starter used with 6611-VG (not mandetory)

6609-GX3 Honda GX340/390 5.5lb w/starter gear (uses B&S 5hp coil)

BILLET FLYWHEELS & IGNITION

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Briggs Animal/Intek 206 OHV Stroker Parts

Part No. Description6240 Stroker rod for Animal using 5hp flathead crankshaft

Part No. Description6580 Billet 5hp flathead crank (+.237 Animal stroker)

555204 "Stock" 5hp Flathead crank (+.237 Animal stroker)6534 Billet Crank Gear for #555204 or #6580 cranks

Part No. Description6054 ARC Billet Sidecover for Stroker Animal (includes seal and gasket)

Part No. Description1982P140 Wiseco piston w/rings and wrist pin (.015 over std bore)*

1982P155** Wiseco piston w/rings and wrist pin (.030 over std bore)*

* Must cut approx. .090" from top of piston.**may need to bore and sleeve block to use this piston

Part No. Description6614-SA ARC Billet Stroker Finned Flywheel with Adjustable Timing6434 Billet Starter Nut used with above cranks

Part No. Description6392 Standard Bearing

6392-2 .002" Undersize Bearing

6392-5 .005" Undersize Bearing6392-10 .010" Undersize Bearing

Part No. Description6383 ARP 1-1/4" Rod Bolt Set w/ washers

Part No. Description555050 Crankshaft main bearing, PTO side555573 Crankshaft main bearing, flywheel side555087 Crankcase seal, flywheel side

Seals & Bearings

Rod Bearings

Bolts

Billet Rods

+.237 Stroker Cranks & Gear

Pistons

Flywheel & Starter Nut

Billet Sidecover

OHV STROKER PARTSARC Animal/Intek 206 Stroker PartsEverything you need to add .200" stroke to your Animal or Intek 206 Engine. Choose from either a stock 5 hp flathead crankshaft, or our tougher billet version of that crank. Choose your piston, noting the boring specs asso-ciated with the pistons below. Each of the other items is necessary to complete your stroked Animal. You must cut down the top of the piston as much as .090". The exact amount will vary from block to block, and it will be best to "mock up" the engine and measure piston pop up to calculate just how much you want to remove.

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Briggs Intek 305 OHV Stroker Parts

Part No. Description6233 Stroker for pre-'07 stock piston w/ 1/16" cut off top

6235 Stroker for JE pistons with 3" to 3.25" bore6237 Stroker for JE "Star" piston with 3-5/16" bore

Part No. Description6585 Billet Crank for #6235 rod

6586 Billet Crank for #6233 or #6237 rod6535 Billet Crank Gear for #6585 or #6586 cranks

Part No. Description6056 ARC Billet Sidecover for Stoker 305

Part No. Descriptionexf4500-3140 JE 3.140" Piston with rings & wrist pin

exf4500-3240 JE 3.240" Piston with rings & wrist pin**must bore and sleeve block to use this piston

Part No. Description6614-305S ARC Billet Finned Flywheel with Adjustable Timing

5986 Billet Coil Bracket6434 Billet Starter Nut

Part No. Description6392 Standard Bearing

6392-2 .002" Undersize Bearing

6392-5 .005" Undersize Bearing6392-10 .010" Undersize Bearing

Part No. Description6080 3rd bearing support for flywheel side

Miscellaneous

Rod Bearings

Billet Rods

+.200 Stroker Billet Cranks & Gear

Pistons

Flywheel, Coil Bracket & Starter Nut

Billet Sidecover

OHV STROKER PARTSARC Intek 305 Stroker PartsEverything you need to add .200" stroke to your Intek 305 Engine. Start by selecting a piston, next, select the rod that goes with that piston, and then select the crankshaft that goes with your rod/piston choice. It is absolutely necessary to have your block alignment bored, and to run a third bearing support with a stroked 305. The engine will produce tremendous horsepower and torque for such a small package. Cranks have a 3/4" PTO shaft for the clutch.

Part # Description2100A Throttle cable2100B Cable end fitting2100C Engine mounting bracket2100D Cable clevis & pin2100E Nylon cable jacket

Part # Description2105 Linkage arm only2110 Linkage kit complete (pictured)2111 Return Spring

2100 Throttle Cable KitThis cable kit is approximately 8 feet long and includes an aircraft quality 9 strand steelcable encased in a high heat, high pressure resistant nylon tube and all necessaryfittings. All items available individually.

Briggs Throttle LinkagesThe throttle cable mounts over the top of the motor and is anchored in placewith a special bracket and fitting with a pivot link and special bellcrank.For use with slide and early butterfly choke type Briggs carburetors.

12

2010 Brake Pedal ModuleDesigned for durability and maximum adjustability, this pedal module is easy to install and maintain. Comes com-plete with mounting rail (master cylinder sold separately).Part # Description2010A Pedal/master cylinder mtg. plate2010B Clevis, pin & cotter pin2010C Pedal adjustment rod2010D Bushing2020 Aluminum mounting rail2030 Heavy duty aluminum pedalOptions:2011 Pedal module without rail8060 Module installation hardware kit8090 Master cylinder mounting kit

Part # Description2050A Pedal mounting plate2050B Throttle rod2050C Throttle return spring2050D Throttle cable block2050E Spring & cable block mtg. bracket2020 Aluminum mounting rail2070 Heavy duty aluminum pedalOptions:2051 Pedal module without rail8060 Installation hardware kit

2050 Throttle Pedal ModuleDesigned for durability and maximum adjustability, this pedal module is easy to install and maintain and comes com-plete with mounting rail.

PEDALS & CONTROLS

13

BRAKE COMPONENTS

Caliper AssembliesAlso made by Martin Custom Products, this caliper is used for Jr. Dragstersand Karts and has dual inlet and bleed fittings. Pad sets sold separately.Specify rotor type when ordering.

MCP

Part # Description3010 Complete Master Cylinder3020 MiniLite Master Cylinder3010A Filler cap3012 Rebuild kit3015 Compression fitting8090 Optional installation hardware kit

Part # Description3050 Complete Caliper Assembly3055 MiniLite Caliper Assembly w/ pads3015 Compression fitting3051 Adjuster assembly3052 Rebuild kit3054 Bleed fitting3101 Pad set (steel for MCP caliper)3121 Pad set (aluminum for MCP caliper)3103 Pad set MiniLite8100 Optional installation hardware kit

Master CylindersUsed for both Jr. Dragsters and Karts, this master cylinder is madeby Martin Custom Products and features dual outlets and a dustcover over the actuator arm and piston. Comes complete withall fittings and uses special DOT 5 brake fluid.

3200 Brake LineOur brake line is made from abrasion resistant nylon tubing which has a high pressure rating and can be usedon Karts and 1/2 scale stock cars and is sold in 16 foot lengths.

Russell Performance Brake Lines308 Stainless Steel outer jacket with teflon liner and zinc platedhose ends to ensure longer life.Kits include lines and fittings needed and caliper cross-over.

Part # Description3210 78”3214 90” 3216 100” 3260 Speed Bleeder

14

BRAKE COMPONENTS

Part # DescriptionJr. Dragsters & Karts:3150 7-1/8” dia. x 3/16” steel3151 6” dia. steel minilite3152 7-1/4” steel 1/4” NHRA Legal3157 10” dia. steel 1/4” NHRA Legal 8110 Mounting Hardware kit (7-1/8” rotor) CALL Mounting Hardware kit (6” rotor) 8140 Mounting Hardwate kit (10” rotor)

Part # DescriptionJr. Dragsters & Karts:3140 1-1/4” id. hub for 7-1/8 & 7-1/4” dia. rotors3142 1-1/4" id hub for 6" Minilite rotor3145 1” id. hub for 7-1/8 & 7-1/4” dia. rotors3600 1-1/4” id standard hub for 10 & 11-1/2” dia. rotors3608 1-3/8” id standard hub for 10 & 11-1/2” dia. rotors3612 1” id. hub for 10 & 11-1/2” dia. rotors

1/2 Scale Stock Cars:3148 1-3/8” id. hub for 7-1/8 & 7-1/4” dia. rotors8110 Mounting hardware kit (small rotor)8140 Mounting hardware kit (large rotor)

Brake RotorsOur line of brake rotors are available in both steel and aluminum and havestandard hub bolt patterns. Select appropriate caliper pad set for rotor type.Mounting hardware sold separately.

Rotor HubsAll of our rotor hubs are CNC machined from billet 6061 T-6 aluminumand come complete with locking bolt. Mounting hardware sold separately.

3510 Cassette Mount WeldmentFormed from 1/8” steel plate and precision machined and drilled, this weldment features radiused flanges for quick alignment and welding to the frame rails.

3520 Caliper Mount WeldmentFormed from 1/8” steel plate and slotted for maxi-mum adjustability of the caliper, this weldment also features radiused flanges for quick alignment and welding to the frame rails.

CHASSIS COMPONENTS

15

CASSETTES & BEARINGS

Part # Description3550 Standard cassette for 1-1/4” id. bearing3552 Standard cassette for 1-3/8” id. bearing8130 Optional mounting hardware kit

Part # Description3575 1-1/4” id. free roller3580 1-3/8” id semi-free roller

Standard Bearing CassettesCNC machined from billet aluminum alloy, these cassettes offer theadvantage of a rigid one piece housing instead of a two piece flangetteand compensate for misalignment of the cassette mount weldment.All models accept spherical bearings listed below.

Axle BearingsOur 1-1/4” id. spherical bearings fit virtually all cassettes and flangetteson the market and are available in the free rolling version.The 1-3/8” id. spherical bearings are only available in semi-free rollingtype and fit our # 3552 cassette only.

DRIVE LINE COMPONENTSSprocket HubsAll sprocket hubs are CNC machined from billet aluminum alloy and havea 6 on 5-1/4” bolt pattern and include an axle locking bolt.

Part # Description3600 Hub for 1-1/4” axles 3602 Hub for 1-1/4” axles3608 Hub for 1-3/8” axles3612 Hub for 1” axles8140 Optional mounting hardware kit

3700 Drive Chain This chain is #35 Space, comes in 48” lengths

3710 Master Link 5 Pack For 3700 Drive Chain

3705 Regina Gold Chain The best #35 chain we’ve found, sold by the foot.

3720 Precision Chain BreakerRugged Steel Construction - Positive Pin Stop - Reduces Chain Binding caused by side plate distortion - Most Precise Construction on the Market.

Drive SprocketsAll sprockets feature dual lock screws, a broached keyway on the inside diameter and are available in 5/8 and3/4” id’s. A 3/16” key is included with each.

Part # Teeth4120 124121 134122 144123 154124 16

16

Tomar and Azusa Quick Change SprocketsThese split style aluminum alloy sprockets for #35 chain are .155” thick and fit virtually all sprocket hubs on themarket today. The Tomar sprockets are blue anodized and have excess material removed to decrease rotating mass. Skip-Tooth sprockets are designed to minimize chain friction.

Part # Teeth047100 71047200 72047300 73047400 74047500 75047600 76047700 77047800 78047900 79048000 80048100 81048200 82048300 83048400 84Larger sizes

available soon.

Part # Teeth046201 62046301 63046401 64046501 65046601 66046701 67046801 68046901 69047001 70047101 71047201 72

Other sizes available

upon request.

Part # TeethSmaller sizes

available.3885 853886 863887 873888 883889 893890 903891 913892 923893 933894 943895 953896 963897 973898 983899 993900 100

Part # Teeth045300 53045400 54045500 55045600 56045700 57045800 58045900 59046000 60046100 61046200 62046300 63046400 64046500 65046600 66046700 67046800 68046900 69047000 70

DRIVE LINE COMPONENTS

AZUSATOMAR

Skip-Tooth

3620 Locking CollarMade from aluminum, this collar is designed for use with 1-1/4” axles.Measures 1/2” wide, has a 1/4” keyway, and includes bolts.

1717

TORQUE CONVERTERS & PARTS4700 Salsbury Series 340 Driver AssemblySupercedes discontinued Salsbury series 330 driver assembly.

Replacement Parts ARC# Comet# Description Ref#4609 Driver mtg. bolt kit4702 302370 Fixed face & post 14613 300175 Idler bushing 24614 300179 Splined washer 34712 302373 Spline liner kit 44710 302362 Moveable face 5 Spring kits 6,7 Spring bushing (see 4607,4608) 8 Bushing (see 4607,4608) 9 Roller kits 10 Pivot pin (see 4607) 11 Pivot pin clamp (see 4607) 12 Lock plate (see 4607,4608) 13 Clamp screw (see 4607) 14

Replacement Parts ARC# Comet# Description Ref#4615 300876 Retractor 154714 302383 Ramp plate 164704 302365 Retainer 174618 300183 Lock washer 184619 Thrust spacer kit 194706 302361 Retainer spacer 204708 302359 Shim kit 214642 Crankshaft key (not pictured)4607 302203 Pivot pin kit (3 rqd.) contains: #’s 8,9,11,12,13,144608 302253 Spring bushing kit (3 rqd.) contains: #’s 8,9,13

4650 302401 Spring tool (optional)

Salsbury Spring & Roller KitsEach roller kit contains 3 arms with mounted rollers. Each spring kit contains 3 left and 3 right wound springs. Choose the approximate stall speed you want from the chart under the roller kits to obtain the roller kit (top) and spring kit (left) needed.

Spring KitsARC # Comet# Color 4601A 302221 Black 2800 2300 2200 1900 17004601B 302222 Pink 4000 3300 3200 2700 24004601C 302223 Gold 4300 3500 3400 2900 26004601D 302225 Purple 4900 4000 3900 3400 30004601E 302224 Blue 5600 4600 4500 3800 3500

Roller Kits4602A 4602B 4602C 4602D 4602E301031 300114 300127 300126 301330Black 27g Black 35g Pink 41g Orange 46g Green 55g

THE DRIVER UNIT ABOVE REQUIRES SPRINGS AND ROLLERSSold Seperately Below

Example: The Black 27gram Roller Kit #4602A from the first column combined with the Black Spring Kit #4601A from the first row will give you a stall speed of 2800 RPM.

RPM

RPM

1818

TORQUE CONVERTERS & PARTS

Salsbury Series 340 Driven AssemblySupercedes discontinued Salsbury Series 330 driven assemblies.See below for 5/8 and 3/4” dia. jackshaft models.

ARC# Comet# Description Ref#Complete Driven Assemblies:4715 302344 Driven assy., 5/8” jackshaft4716 302345 Driven assy., 3/4” jackshaft

Replacement Parts4621 300930 Fixed face & post, 5/8” 14624 300847 Fixed face & post, 3/4” 14626 300240 Bushing 24718 302346 Moveable face 34628 300234 Torsion spring, black 44720 302364 Cam w/buttons 54630 300172 Buttons (3 pk.) 64631 214843 Set screw set (3 pk.) 74722 302347 Spacer 8

ARC# Comet# Size (approx.)Series 340 Drive Belts (3/4” top width):4731 203579 7-3/16”4732 203580 7-5/8”4733 203581 8-1/4”4734 203582 8-3/4”4735 203583 9-1/4”4736 203585 10”

4672 Two Piece Fixed FaceDesigned as a direct replacement for the Salsburyseries 340 fixed face, this unit features a steel post that won’t wear out and a pulley face that’s CNC machined from 6061 T-6 aluminum.

Part # Description4672A Pulley face4672B Splined hub

1919

TORQUE CONVERTERS & PARTS

Ref ARC# Comet# Description 4020 Driver drum bolt kit includes:1 215732A Mounting bolt - TAV2-75 205634A Mounting bolt - TAV2-1002 200701A Lock washer3 4025 202429A Pilot washer - TAV2-100 200840A Pilot washer - TAV2-75The above hardware is included to mount your drive clutch to your engine. It is

important that you use the correct bolt and washer to fit your partivular engine.

*4 4027 202090A Driver drum - TAV2-75 202427A Driver drum - TAV2-1005 4032 200376A Driver hub - 3/4” 203641A Driver hub - 1”6 4035 200344A Driver weight, Std 4036 202931 Driver weight, Opt-Alum6B 4044 11188A Garter springs, Std-Blue7 4052 200410A Sheave, moveable half w/hub8 4053 200349A Bronze bushing9 4055 203589A Drive belt - 7” asymmetric10 4057 202066A Sheave, stationary half 206633A Sheave, stationary 2 1/2 1” bore11 4059 200389A Bushing 202877A Spacer 1”12 4063 203189A Jam nut14 4071 204714A Retainer ring15 4075 215650A Fixed cam

Ref ARC# Comet# Description16 4077 215699A Torsion spring, Std-Green17 4089 215647A Moveable face w/cam17A 4087 204332A Button Insert18 4091 203942A Bushing19 4093 217612A Fixed face w/post 4095 Jackshaft key set includes:20 209831A Key21 011059A Key22 4099 212225A Jackshaft23 4102 200834A Spacer washer set, 2 pcs.24 4106 200379A Sprocket, Std-12 tooth 4104 202168A Sprocket, Opt-10 tooth25 4125 215558A Ball bearing 4130 Engine mount bolt kit includes:26 203187A 2 ea. Hex cap screw27 212227A 4 ea. Lock washer34 218514A 2 ea. Socket head screw28 4140 218525A Mounting bracket w/bearings29 4148 217867A Hex HD Cap Screw 5/16-24 x 1”

30 4156 200701A Plastic shroudw/decals31 218351A Torq-A-Verter decal32 214146A screw THD FRM 1/4 - 20x1/233 4172 218513A Decal

*NOTE: DRIVER DRUM & HUB MUST BE WELL ALIGNED AND TORQUED DOWN TIGHTLY.**TO ASSURE PROPER BALANCE THE SPRINGS SHOULD BE REPLACED IN PAIRS OR THE ENTIRE WEIGHT ASSEMBLY SHOULD BE REPLACED.

4000 TAV2-30 Torq-A-Verter®This unit is excellent for entry level racers with stock motors.Specifications:Recommended H.P.:8 H.P. 4 Cycle (stock)8 H.P. 2 Cycle (stock)

Drive clutch bore size: 3/4” with 3/16” keyDrive clutch engagement: 2200 rpm(with stock driver weight & springs)

20

TOMAR CLUTCHES & PARTS

1 490113 1 Snap ring-external2 490114 1 Thrust Washer, outer 14T-23T 490129 1 Thrust Washer, outer 12T-13T3 490115 1 Retaining Ring, outer2,3,4,5,6 see chart 1 Sprocket Assembly 5 490116 1 Bronze Bushing (12T & 13T) 490117 1 Bearing (14T & up) 480999 1 Bronze Bushing (11T)6 490118 1 Snap ring, sprocket, external7 481007 1 Drum, Steel, 2 disc stock/mod(Bully/Tomar gear) 481013 1 Drum, Steel, 1 disc Jr (Bully/Tomar gear 481010 1 Drum, Steel, 3 disc Open (Bully/Tomar gear)8 490119 2 Thrust washer, internal 490123 2 Thrust washer, internal, for 11T9 490120 1 Thrust bearing, internal 490124 1 Thrust bearing, internal for 11T10 490101 1 Fixed Plate11 400001 1-3 Friction disc12 490105 0-2 Floater .080 490103 0-2 Floater .090 490104 0-2 Floater .085 490106 0-2 Floater .075 490107 0-2 Floater .070 490128 0-2 Floater .09513 490108 opt Shim, .00514 490100 1 Drive Hub for stock 2 disc 490125 1 Drive Hub drive hub for stock 2 disc 9T-11T 490126 1 Drive Hub Jr 1disc 481043 1 Drive Hub Jr 1 disc 9T-11T 490130 1 Drive Hub open 3 disc 481035 1 Drive Hub open 3 disc 9T-11T15 490102 1 Pressure Plate, Billet16 490110 6 Levers17 490112 6 Dowell Pins, lever18 900419 6 Bolt, weight19 900418 6-24 Washer, weight20 900420 6 Nut, weight21 490111 1 Weight Kit (items 18,19,20)22 490109 1 Weight / Lever Support23 900411 6 Bolt, weight support stock/modified 2 disc 900421 6 Bolt, weight support open 3 disc 900422 6 Bolt, weight support Jr. 1 disc 900423 6 Washer Jr 1 disc weight support bolt24 464902 1 Spring Set (6 matched) Red .091 wire dia. 465002 1 Spring Set (6 matched) Black .085 wire dia.25 & 26 334702 1 Adjusting screw and retainer set27 900426-1 1 Clutch Key28 900414 1 Flat washer, 5/16 special29 900415 1 Lock Washer 5/1630 900416 1 Bolt, 5/1631 490121 1 Spacer, Crankshaft 490122 1 Spacer, Crankshaft 11T

Ref. # # Req

One killer clutch! Tomar has entered the karting clutch market seemingly out of nowhere and in a very short time has built a solid repu-tation of quality, durability, and performance at a price considerably lower than com-parable clutches. Precision CNC accuracy and springs that are matched to within 1lb of each other makes this clutch a dependable hard hit-ter. Fully adjustable models from Jr. class single disc to Open class triple disc cover a stall-speed RPM range from as low as 2800 to as high as 6000! All clutches sold by ARC include Tomar’s new lightweight steel basket and a premium quality Tomar Gold Series (Tomar/Bully style) drive gear of your choice.

490437 Jr, 1 disc Stellar 4 Clutch490414 Stock/Modified 2 disc Stellar 4 Clutch 490074 Open/Outlaw, 3 disc Stellar 4 Clutch

490131 11 Tooth Gold Series Drive Sprocket fits Tomar/Bully490132 12 Tooth Gold Series Drive Sprocket fits Tomar/Bully490133 13 Tooth Gold Series Drive Sprocket fits Tomar/Bully490134 14 Tooth Gold Series Drive Sprocket fits Tomar/Bully490135 15 Tooth Gold Series Drive Sprocket fits Tomar/Bully490136 16 Tooth Gold Series Drive Sprocket fits Tomar/Bully490137 17 Tooth Gold Series Drive Sprocket fits Tomar/Bully490138 18 Tooth Gold Series Drive Sprocket fits Tomar/Bully490139 19 Tooth Gold Series Drive Sprocket fits Tomar/Bully490140 20 Tooth Gold Series Drive Sprocket fits Tomar/Bully490141 21 Tooth Gold Series Drive Sprocket fits Tomar/Bully

400001 Friction Disc Tomar Stellar490098 Rebuild kit for Jr 1 disc clutch contains black springs & a friction disc490099 Rebuild Kit for Stock/Modified 2 disc clutch contains red spring set, 2 friction discs, and a .080 floater.481007 Lightweight Steel Clutch Basket

Popular Clutch Replacement Parts

Tomar Driver Gears

Part # Description

Tomar Clutches

Specify Drive Gear Size When Ordering a Clutch

Part #

Part #

Description

Description

Part # Description

Tomar Parts

20

21

FLATHEAD PERFORMANCE PARTS

Cylinder SleevesThese sleeves are manufactured from close grain cast iron and are available in different sizes.

Max Part # ID OD Length Bore6400 2.470 2.750 4.500 +.1006404 2.470 2.690 4.500 +.0606406 2.625 2.813 4.500 +.1406408 2.620 2.840 4.500 +.205

High Performance Pistons, Rings & Wrist PinsManufactured by Wiseco, can be usedwith rods up to 4.5” long.

Call for Application Advice (800)521-3560

ARC # Description6160 Dual valve spring kit, complete6162 Dual valve springs only pair6164 Dual valve spring kit, HD +.500 Cam6170 Stock 1.360" single valve spring6171 Stock 1.420" single valve spring6172 Stock 1.460" single valve spring6173 Stock 1.485 single valve spring6176 Animal Stock single valve spring6166 Animal Dual valve spring kit, complete

Valve Springs, Retainers & KeepersThese heavy duty, hi-performance valve springs for 5 hp and Animal blocks. complete kits contain a pair of springs, and their retainers and keepers.

ERP008 Chain/Engine guard forB&S 5hp (1/8" tihick)

Clutch/Engine GuardThe Eagle Racing Products clutch guard acts as a heat shield for the driver from the engine, and as a clutch guard. Special order options include red or black powder coating and smooth plate rather than standard diamond plate.

22

FLATHEAD PERFORMANCE PARTS Valves Available in Stainless Steel all valves have .248 dia. polished stems.

Stainless SteelPart # Size6150 1.125 Exhaust6150-1 1.000 Exhaust6151 1.160 Exhaust6152 1.250 Intake6153 1.375 Intake6155 1.439 Intake6157 1.500 Intake

Valve Seats All seats are on size and cut 90°.

Steel SeatsPart # ID x OD x Width6145 0.869 x 1.080 x .201 Exh6146 0.863 x 1.088 x .218 Exh6147 1.002 x 1.206 x .201 Int6148 1.000 x 1.213 x .218 Int

Valve GuidesThese full length, special bronze alloyguides are a must for superior oilretention and maximum wear.

Steel SeatsPart # ID x OD x Width6138 1.125 x 1.317 x .218 Int. 6139 1.187 x 1.442 x .218 Int. 6140 1.000 x 1.203 x .201 Exh6142 1.127 x 1.328 x .201 Int6143 1.250 x 1.507 x .218 Int6144 Set (1ea. 6140 & 1ea. 6142)

Part # Description6195 ARC bronze guide 2 pk.

6190 Billet Lifters Measuring + .100” oversize,these lifters are high quality, hardened after-market and fit all Briggs 5 hp. blocks. (1 pair)

6188 "Stock" Billet Lifters High Performance Stock Appearing lifters for Briggs 5 hp.Blocks. (1 pair)

6191 Billet Lifters 5/16" Flat (sold in singles)

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Intake Timing Exhaust Timing IgnitionARC Max Lift Open Close C/L Approx Open Close C/L Approx TimingPart # Dyno# Int Exh BTDC ABDC ATDC Lash BTDC ABDC ATDC Lash BTDCAdjustable Billet Cams

6642 117Drag .436 .437 43° 75° 107° .005 76° 40° 108° .007 34-36°6645 125WLB .458 .458 54.8° 87.6° 107.2° .005 89° 53.7° 107.9° .005 34-36°6646 127WLB .478 .480 47° 84° 108° .008 85° 48° 109° .008 36-38°6648 128WLB .508 .508 49° 85° 108° .008 85° 49° 108° .008 34-36°

Welded Cast Cams6634 107SS .315 .316 39° 71° 105° .008 76° 31° 115° .009 32-34°6636 110Drag .360 .360 41° 77° 111.5° .008 77° 41° 109° .008 34-36°6639 98EXP .406 .406 42° 82° 107.6° .008 82° 41° 109.7° .009 34-36°

Animal Limited Modified Welded Cast Cam6662 AN-MOD1 .310 .310 41.9° 83.3° 108° .003 78.1° 46° 108.1° .003 28-29°

23


All Cast Cams are precision ground for accuracy, flame hardened for maxi-mum wear, then the lobes are buffed for minimal drag on the tappets.The Adjustable Billet Cams offer all of the above plus they’re stronger than the cast cams and easy to advance or retard by 2, 4, or 6 degrees. All cams listed are for 5hp flathead engines unless otherwise specified.

Intake Timing Exhaust Timing IgnitionARC Max Lift Open Close Dur at Spring Approx Open Close Dur at Spring Approx TimingPart # Dyno# Int Exh BTDC ABDC .050 Pres. Lash BTDC ABDC .050 Pres. Lash BTDCStock Flathead Cams6650 95-3 232.5 232.5 16° 75° 18lbs .005 50.5° 18° 17lbs .005 29-30°6651 7X 232.5 232.5 16.5° 73° 20lbs .003 51° 20° 18lbs .003 29-30°6653 04-3 232.5 232.5 15° 73° 21lbs .003 49° 21° 19lbs .003 29-30°6660 07-3 232.5 232.5 17° 73° 18lbs .003 49° 24° 18lbs .003 29-30°

Animal Stock Cams6661 AN-001 256.5 256.5 28° 65° 18lbs .003 71° 20.5° 18lbs .003 29-30°

Hot Stock Cams6632 94SS 268 262 31° 70° 241° 20lbs .006 72.5° 28° 244° 20lbs .006 30-32°6633 233SS 233 233 41° 72° 260° 20lbs .008 78° 33° 260° 20lbs .008 30-32°

All Other Cams from Dyno Cams are also available by special request.

Jr Dragster and Modifi ed Karting Cams

Stock and Hot Stock Karting Cams

24


ARC # Felpro # ApplicationHead Gaskets6700 FPS10001 Std. bore to .060 over. All classes. NHRA, WKA, IKF accepted. S/S core, exp. graphite face w/anti-stick coating. Nom. comp. thickness: .048 6700B FPS61001 Package of 10 ea. 67006701 FPS10002 Std. bore to .100 over. Jr. Drag, Limited & Modified. NHRA, WKA, IKF accepted. Copper w/anti-stick coating & large valve reliefs. Nom. comp. thickness: .0306702 FPS10003 Std. bore to .100 over. Jr. Drag, Limited & Modified. NHRA, WKA, IKF accepted. Exp. graphite core, steel face w/anti-stick coating & large valve reliefs. Nom. comp. thickness: .0506703 FPS10004 Std. bore to .060 over. All classes. NHRA, WKA, IKF accepted. Exp. graphite core, steel facing w/anti-stick coating. Nom. comp. thickness: .0506704 FPS10006 Std. bore to .100 over. Jr. Drag, Limited & Modified. NHRA, WKA, IKF accepted. Copper w/anti-stick coating & large valve reliefs. Nom. comp. thickness: .0436705 FPS10005 Std. bore to .060 over. NHRA, WKA, IKF accepted Copper w/anti-stick & stock valve reliefs. Nom. comp. thickness: .060Side Cover Gaskets6706B FPS62001 Package of 10 ea. All classes. NHRA, WKA, IKF accepted. Hi-Performance paper w/Kevlar® content. Nom. thickness: .0156707 FPS20002 All classes. NHRA, WKA accepted + IKF (limited & modified only). Rubber coated metal (RCM). Nom. comp. thickness: .015/.0186707B FPS62002 Package of 10 ea. 6707Breather Cover Gaskets6708 FPS20003 All classes (billet covers only). NHRA, WKA accepted + IKF (limited & modified only). Rubber coated metal (RCM). Nom. comp. thickness: .015/.0186709B FPS62007 Package of 10 ea. All classes. NHRA, WKA, IKF accepted. Hi-Performance paper w/Kevlar® content & anti-stick coating. Nom. comp. thickness: .0456730 FPS20010 NHRA, WKA, IKF accepted Steel core laminate. Raptor ll. Nom. Comp. thickness: .045Intake Manifold Gaskets6710 FPS30001 Stock port size: .900 dia. All classes. NHRA, WKA, IKF accepted. Hi-Performance paper w/Kevlar® content, Printoseal w/silicone coating. Nom. thickness: .0456710B FPS63001 Package of 10 ea. 67106711 FPS30004 Large port size: 1.100 dia. Jr. Drag, Ltd & Mod. NHRA, WKA, IKF accepted. Steel core laminate w/silicone coating. Large bolt pattern. Nom. thickness: .0486711B FPS63004 Package of 10 ea. 67116712 FPS30009 Stock port size: .900 dia. All classes. NHRA, WKA, IKF accepted (Ltd. & Mod. only) Steel core laminate. Printoseal w/silicone coating. Nom. thickness: .0486712B FPS63001 Package of 10 ea. (6712)6714B FPS63006 Package of 10 ea. Tillotsen Carb. Jr. Drag Ltd. & Mod. NHRA, WKA, IKF accepted. Port size: 1.050 dia. Hi-Performance paper w/Kevlar content & anti-stick coating. Nom. thickness .015

Gaskets & Sets for 5 hp. Briggs & Stratton

SHOP ONLINE AT ARCRACING.COM

25

FLATHEAD PERFORMANCE PARTS ARC # Felpro # ApplicationCarburetor & Fuel Tank Gaskets6713 FPS30002 Fuel tank gasket. All classes. NHRA, WKA, IKF accepted. Hi-Performance paper w/Kevlar® content w/silicone coating. Nom. thickness: .0606713B FPS63002 Package of 10 ea. 67136715 FPS30008 Carburetor diaphragm. All classes. NHRA, WKA, IKF accepted. Premium Viton® material. Nom. thickness: .010Exhaust Manifold Gaskets6716 FPS40001 Port size: 1.110 dia. All classes. NHRA, WKA, IKF accepted. S/S core, exp. graphite face w/anti-stick coating & steel port armor. Nom. thickness: .0506716B FPS64001 Package of 10 ea. 67166717 FPS40002 Port size: 1.160 dia. All classes. NHRA, WKA, IKF accepted. S/S core, exp. graphite face w/anti-stick coating. Nom. thickness: .0506717B FPS64002 Package of 10 ea. 67176734 FPS40004 Port Size: 1.080 dia. All classes. NHRA, WKA, IKF accepted S/S core, ex. graphite face. Nom. thickness .050Crankshaft Seals6718B FPS67001 Package of 10 ea. Double lip - PTO side. All classes. NHRA, WKA, IKF accepted. Nom. ID: .770 Nom OD: 1.634 Premium polyacrylate rubber. Nom. thickness: .1886719B FPS67003 Package of 10 ea. Double lip - MAG side. All classes. NHRA, WKA, IKF accepted. Nom. ID: .845 Nom OD: 1.260 Premium polyacrylate rubber. Nom. thickness: .1886740B FPS67002 Package of 10 ea. Double lip- PTO side Raptor l & ll. NHRA, WKA, IKF accepted. Nom. thickness .188Complete Gasket Sets6720 FPS90001 Stock - Full set. All classes. NHRA, WKA, IKF accepted. contents (1 ea.): 6700, 6706, 6709, 6710, 6713, 6715, 6717, 6718, 67196721 FPS90002 Jr. Drag - Full set. Jr. Drag. NHRA, WKA accepted + IKF (Ltd. & Mod. only). contents (1 ea.): 6701, 6707, 6708, 6711, 6714, 6716, 6718, 67196722 FPS90003 Kart Race - Full set. All classes NHRA, WKA accepted + IKF (Ltd. & Mod. only). contents (1 ea.): 6700, 6707, 6708, 6712, 6713, 6715, 6716, 6718, 67196723 FPS90004 Seal Set. All classes. NHRA, WKA, IKF accepted. contents (1 ea.): 6718, 6719

Copper GasketsPart # Size6100 .0216102 .0276104 .0326106 .0436108 .062

Aluminum GasketsPart # Size6110 .0256112 .0326114 .0406116 .0506118 .063

Head GasketsExcellent quality, Hi-Performance gaskets available in copper or aluminum.

Copper BlockZilla Head GasketsPart # Size6120 .032 Bloczilla II6121 .032 Blockzilla III6122 .032 up to +.194 & Big Valves6124 .043 “ “6126 .063 “ “

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CARBURETORS, PARTS & ACCESSORIES6854 Linkage KitBack by popular demand, this kit was originally designed for use with the ARC Turbo Jet Carburetor, butcan also be fitted to a variety of other carburetors.It features easy installation and total adjustability.

Part # Description Ref6858 Throttle cam stand 16862 Cable block (2 rqd.) 26856 Throttle cam 36862A Cable block screw (2 rqd.) 46864 Throttle cam bolt 5

ARC CVS Breather CoverHelps stabilize the rings for more consistency and horsepower. Prevents air from entering the crankcase, saving horsepower and eliminating oil leaks and blown crankcase gaskets and O-rings. Eliminates the need for catch cans on Jr. Dragsters.

KARTINGPart # Description 6044 Control Stock6046 BlockZilla6049 Raptor

Jr. DragstersPart # Description 6045 BlockZilla6048 Raptor

Drag BlockZilla

Limited Raptor Karting

27

CARBURETORS, PARTS & ACCESSORIES

Part # Description6930 Briggs adapter, standard6932 Briggs adapter, velocity6933 Briggs "fun power" velocity6928A Screw set for 69286934 Screw set for 6930 & 6932

Part # Description6898 Straight air filter6899 Angled air filter6950 K&N Straight Air Filter6952 K&N Angled Air Filter6954 K&N Extreme angled reverse6956 K&N Extreme angled tapered6958 K&N Extreme straight reverse6960 K&N Extreme straight tapered6962 K&N Animal Air Filter (fits stock carb)

Air Filter AdaptersAvailable for Briggs carburetors, each adapter is made from billet alu-minum, has a 2.500” OD and includes mounting screws.

Air FiltersBoth models feature a standard 2.500” ID and include a mounting clamp. Special design permits very high flow rates, minimum restriction, maximum filtration, and a very long filter life. When dirty, simply wash, re-oil, then re-install.

FUEL - OIL HANDLING

Part # Description6940A Replacement cap6940B Replacement petcock bushing6942 Mini-Breather/Catch Can

6940 Fuel CellManufactured by JAZ, this cell is made of seamless crosslink polyethylene with 1 qt. capacity and two 1/4-20 threaded inserts for mounting.

Fuel LineAll fuel line is high grade 7/16” OD x 1/4” ID x 3/32” wall neoprene.

10 Foot LengthsPart # Color6905 Red6909 Blue6913 Orange

20 Foot LengthsPart # Color6906 Red6910 Blue6914 Orange

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FUEL - OIL HANDLINGFuel Pumps & FiltersPart # Description6935 Mikuni fuel pump (Single Outlet)6936 Mikuni rebuild kit (6935)6925 In-line fuel filter6937 Dual Outlet Mikuni Fuel Pump6938 Mikuni Rebuild Kit (for 6937)6939 Mikuni fuel pump (Dual Outlet Bracket Mount)

TACHOMETERS & ACCESSORIESMychron Data Acquisition UnitsThe newest data acquisition units from Mychron are the end of the line in race data logging technology. The Mychron4 for karting combines a temperature gauge, tachometer, lap timer, and data logger into a compact, pow-erful unit that easily mounts to your steering wheel. The MyChron3 660 for Jr Dragsters records Engine RPM, Jack Shaft RPM, Wheel Speed in MPH, Exhaust Gas Temperature, Cylinder Head Temperature, CVT, Overdrive Percentage and Linear Acceleration in G-forces. For full features, visit their website at www.aimsports.com

Mychron Units, Accessories, and SensorsMC-M3660 Mychron-3 660 with all sensorsMC-M4B Mychron-4 with cht, RPM, and lap sensorsMC-BT Mychron Beacon Transmitter (all Mychron gauges w/lap)MC-BR Mychron Beacon Receiver (all Mychron gauges w/ lap)MC-DK Mychron-4 Data KeyMC-CHT Cylinder Head Temp Sensor for Kart only (1 piece)MC-CHTS Cylinder Head Temp Sensor-Short (requires patch cable)MC-EGT Exhaust Gas Temp Sensor-(requires patch cable)MC-EGTC Exhaust Gas Temp Sensor ClampMC-JSC Jackshaft Sensor CollarMC-JSS Jackshaft SensorMC-RPM Tachometer SensorMC-TC660 Thermocouple Patch Cable for 660 (Y-splitter type for 2 sensors)MC-TCS Thermocouple Patch cable for one sensor

29

TACHOMETERS & ACCESSORIES

8300 AutoMeter TachometerThis analog style tachometer has a 10,000 rpm range, includes mount-ing bracket and requires a 12 volt battery (not included).

DT52K-MAX DT54J-TJEC DT46K-TEK

Replacement Parts & Accessories8312 SS-102 Standard CHT sensor8318 SS-Ext CHT sensor extension, 42”8314 TS-106B Tach Induction sensor, Std.8315 TS-110B Tach induction sensor, 54” isolated 8318 Tach induction sensor, 3’ isolated

8320 TS-Ext-6B Tach Induction sensor extension, 42”8337 EXT-102B EGT sensor (Briggs)8339 EG-Ext-M EGT sensor extension, 54” fits 8337 8341 H24A EGT sensor clamp assembly8346 Pigtail BNC EGT sensor8322 Pigtail BNC PC Download Cable8323 Beacon Transmitter8324 Pigtail BNC Beacon Receiver8326 Pigtail BNC Jackshaft RPM Sensor 3’

Replacement Parts & Accessories8347 Pigtail BNC EGT 5’ cable with open tip sensor8349 Pigtail BNC EGT 3’ cable with open tip sensor8348 Pigtail BNC EGT 4’ extension cable

Cables for Units with New Mini BNC Connectors8380 CHT 3’ cable8381 CHT 5’ cable8382 CHT 4’ extension cable8383 EGT 3’ cable with open tip sensor8384 EGT 5’ cable with open tip sensor8387 EGT 4’ extension cable8388 Inductive Tach 3’ cable8389 Inductive Tach 5’ cable8390 Inductive Tach 4’ extension cable

TACHOMETERS & ACCESSORIES

30

ENGINE ACCESSORIES

Exhaust Port ReducersUsed on Briggs 5 hp. motors, these reducers are insert-ed into the the port to reduce size and improve the flow of exhaust gasses.

Part # Description6130 Port reducer, single

These lightweight, hand-held gear reduction starters are Manufactured by Coleman Products and provide ease of use, plenty of torque and total portability.

Part # Description5955 Super Mini gear reduction starter.6434 Starter nut Flathead/ARC crank6435 Starter nut Animal 6.5HP -16x1.5mm6436 Starter nut Hon/Yam 6.5HP -14x1.5mm

ELECTRIC STARTERS & ACCESSORIES

Header KitsThree stage black headers fit 5 hp. Briggs motors and include mounting bolts & aluminum gasket.

Part # Description5871 3 stage black open header5872 3 stage black stock header5866 Replacement bolt kit5867 Header Gasket (ea.)5868 Header Gasket (10 pk.)

MOTOR MOUNTSARC Billet Flat MountDesigned to lower the verticle center of gravity on your kart. The motor ismoved both down and to the left to clear the tire. All mounting hardware IS included. (does not fit Millenium Chassis)

Part # Description 3501 Flat Mount - 1 1/4” tube dia. specify Amer. or Intl spacing 3502 Flat Mount - 1 1/8” tube dia. specify Amer. or Intl spacing

31

BOX STOCK ENGINES AND BLOCKS

Briggs & Stratton ANIMAL RACING ENGINE- Nitrated exhaust valve- Beefy rocker arm stud nuts- Federal mogul cam ground barrell faced piston- Chromed compression ring- Walbro PZ Slide Carburetor- Silicone beaded side cover gasket- Racing reinforced push rods- Rewind installed blower housing- Die cast performance rod w/ rod cap dipper- Racing valve springs- PVL Electronic Ignition- Induction hardened crankshaft- Automotive style keepers

Part # Description124432 Briggs OHV AnimalYF200R1 Yamaha OHV F200555640 BlockZilla 2555641 BlockZilla 3 (for 3” bore)

Briggs & Stratton BlockZilla II and IIIThe ultimate in 5hp blocks and destined to be the block of choice for Open Class Karting and Jr. Drag Racing.Die-cast from 356 T-7 aluminum alloy, this block has all the extra room needed for big bore and big stroke configurations.Features:- Accepts Raptor ll ignition, crankshafts & valve train- Clearanced for +.500 stroker cranks- Stock deck height with thicker surface for better gasket seal- Angled ports for better flow- Dual bearing casting with reinforced crank bearing boss- Thicker cylinder wall to reduce distortion- Reinforced lifter bosses- Thicker valve seat area- Same motor mount footprint as Raptor llI

Yamaha YF200-R1 from Burris Racing

Features include aerospace quality castings for the dual ball bear-ing block, big valve cylinder head and side cover, and a forged and induction hardened crankshaft. Couple this with such well known high performance aftermarket companies like: ARC Racing, Cometic Gaskets, Wiseco Pistons, Dyno Cams, K&N Filters, LA Sleeves, NGK Spark plugs and Tillotson carburetors and you have a very potent combination right out of the box. This engine is a great package for the exciting F200 racing program developed by Burris Racing which also allows modified versions of the Briggs & Stratton Animal and models from Honda, Kohler, and Tecumseh.Visit www.speedway-karting.com for more information.

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ANIMAL REPLACEMENT PARTS

Parts fit ANIMAL Motor.Assemblies include all parts

shown in frames.

Ref# Part # Description1 555687 Cylinder Assembly2 555140 Bushing/Seal Kit (Magneto Side)3 555071 Oil Seal (Magneto Side)15 555079 Oil Drain Plug15A 555578 Oil Drain Plug (Flush)306 555519 Cylinder Shield307 555533 Cylinder Shield Screw718 555579 Locating Pin1019 555577 Label Kit16 555565 Crankshaft17A 555573 Ball Bearing24 555054 Flywheel Key377 555049 Woodruff Key741 555574 Timing Gear25 555510 Piston Assembly (Standard) 555511 Piston Assembly .010” 555512 Piston Assembly .020” 555513 Piston Assembly .030” 26 555514 Ring Set (Standard) 555515 Ring Set .010” Oversize 555516 Ring Set .020” Oversize 555517 Ring Set .030” Oversize27 555521 Piston Pin Lock28 555520 Piston Pin

33

ANIMAL REPLACEMENT PARTSParts fit the Animal Motor.Assemblies include all parts shown in frames.

Ref# Part # Description5 555558 Cylinder Head 7 555524 Cylinder Head Gasket 555698 Fire-Ring Head Gasket13 555540 Cyllinder Head Screwno pic 555690 Heat Disperser(for head)33 555552 Exhaust Valve 34 555551 Intake Valve35 555553 Intake Valve Spring36 555553 Exhaust Valve Spring42 555550 Valve Keeper45 555307 Valve Tappet155 555547 Cylinder Head Plate192 555548 Rocker Arm Adjuster337 491055 Sparkplug619 555556 Cylinder Head Plate Screw635 555162 Sparkplug Boot830 555549 Rocker Arm Studno pic 555645 .002 over valve guide

Ref# Part # Description914 555535 Rocker Cover Screw (7/16” Long)914 A 555542 Rocker Cover Screw (3/8” Long)993 555554 Cylinder Head Plate Gasket1022 555523 Rocker Cover Gasket1023 555528 Rocker Cover1026 555531 Push Rod1029 555546 Rocker Arm1034 555555 Push Rod Guideno pic 555688 Breather By-pass

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Ref# Part # Description12 555525 Crankcase Gasket17 555527 Ball Bearing18 555559 Crankcase Cover20 555529 Oil Seal (PTO Side)21 555037 Oil Fill Cap22 555534 Crankcase Cover/Sump Screw415 555563 Plug46 555532 Camshaft (Machined) 555584 Camshaft (Unmachined)333 555530 Magneto Armatureno pic 555681 PVL Magneto (Coil)334 555539 Magneto Armature Screw356 555569 Stop Wire356 A 555568 Stop Wire188 555538 Control Bracket Screw222 555562 Control Bracket 347 555564 Rocker Switch564 555571 Control Cover Screw564 A 555575 Control Cover Screw604 555570 Control Coverno pic 555699 Cylinder Plate (replaces 570 & 562)304 555572 Blower Housing305 555051 Blower Housing Screw608 555576 Rewind Starter

Parts fit ANIMAL Motor.Assemblies include all parts shown in frames.

35


Parts fit Animal Motor.Assemblies include all parts shown

in frames.

Ref# Part # Description51 555522 Intake Gasket94 555585 Idle Mixture Kit98 555586 Idle Speed Kit117 555536 Main Jet (Gasoline) (Contains 7 Different Sizes)117 A 555537 Main Jet (Alcohol) (Contains 8 Different Sizes)122 555545 Carburetor Spacer125 555560 Carburetor130 555590 Throttle Valve133 555591 Carburetor Float137 555592 Float Bowl Basket147 555594 Pilot Jet254 555607 Carburetor Bowl Drain365 555544 Carburetor Screw (Carburetor to Spacer)531 555595 Throttle Cable Cap Gasket629 555596 Throttle Return Spring654 555541 Carburetor Nut975 555598 Float Bowl1218 555601 O Ring Seal1233 555602 Needle Jetno pic 555691 BHA Alcohol needle1234 555603 Throttle Cable Gap1238 555608 Carburetor Spacer Screw (Spacer to Cylinder)1240 555647 Carb Boot1244 555610 Carb O-ring 1250 555593 Emulsion Tube

Ref# Part # Description23 555683 PVL Flywheelno pic 555685 PVL System (complete)332 555038 Flywheel Nut363 19584 PVL Flywheel Puller455 555518 Flywheel Cup1005 555526 Flywheel Fan1070 555526 Flywheel Fan Screw1239 19433 Flywheel Wrench

a

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Parts fit Animal Motor.Assemblies include all parts

shown in frames.

Ref# Part # Description3 555071 Oil Seal (Magneto Side)7 555524 Cylinder Head Gasket12 555525 Crankcase Gasket20 555529 Oil Seal (PTO Side)51 555522 Intake Gasket

Ref# Part # Description993 555554 Cylinder Head Plate Gasket1022 555523 Rocker Cover Gasket1095 555581 Valve Gasket Set1218 555601 Carburetor O Ring Seal1240 Throttle Cable Boot - Sold in Kit ONLY1244 O Ring Seal - Sold in Kit ONLY

Ref# Part # Description121 555605 Carburetor Overhaul Kit137 555592 Float Bowl Gasket358 555580 Engine Gasket Set531 555595 Throttle Cable Cap Gasket

37

FLATHEAD 5HP REPLACEMENT PARTSAssemblies include all parts shown in frames.

38


39


40


41


42

YAMAHA OHV REPLACEMENT PARTS

Qty column shows how many are needed.All parts fi t the Yamaha YF200R1 and the Kohler CS6-Pro

43



44



4545

Part # Description9030 Plain hub with 4/4 pattern for 1 1/4" axle9031 Plain hub with 4/4 pattern for 1" axle9033 Plain hub with 4/4 pattern for 3/4" axle9040 Star hub with 4/4 pattern 1 1/4"8150 Lug bolt & nut set (for 1 hub)

Rear Hubs for Jr. DragstersPrecision machined from 6061 T-6 aluminum, these hubs are designed for use on 1-1/4” diameter axles.Models 9030 and 9040 feature a 4/4 bolt pattern for 1/2-20 lug bolts and nuts (sold separately).

FRONT WHEEL HUBS9015 Ball Bearing Front HubsPrecision machined from 6061 T-6 aluminum, these hubs can be used for both Jr. Dragsters and Karts. Standard features include dual sealed ball bearings, standard bolt patterns for 1/4-28 and 5/16-24 lug bolts and fit 5/8” diameter axles.Lug bolts & nuts sold separately.

Part # Description9014 Hub only (less bearings)9020 Replacement ball bearing (2 rqd.)8160 Optional 1/4-28 lug bolt & nut set

Part # Description9062 Bearing race (2 rqd.)9064 Roller bearing (2 rqd.)9066 Bearing seal (2 rqd.)9068 Spacer bushing8160 Optional 1/4-28 lug bolt & nut set9061 Roller Bearing Front Hub complete 5/8” x 3/4” id9065 Roller Bearing Front Hub complete 5/8”id

Roller Bearing Front HubsPrecision machined from 6061 T-6 aluminum, these hubs provide that extra edge needed through turns because there is virtually no loading on the bearings.Standard features include dual tapered roller bearings, standard patterns for 1/4-28 and 5/16-24 lugbolts (sold separately) and fit 5/8” diameter axles.

Note: Virtually any lubricant can be used with these bearings.Special Note: If ordering the hub only, bearing races are notincluded (must be pressed in).

REAR WHEEL HUBS

4646

REAR WHEEL HUBS

Part # Description9024 Rear hub for 1” axles9025 Rear hub for 1-1/4” axles8170 Replacement 1/4-28 lug bolt & nut set

Rear Hubs for KartsPrecision machined from 6061 T-6 aluminum, these hubs are designed for increased strength and are available foruse on either 1”, 30mm or 1-1/4” axles. All models have dualpatterns for 1/4-28 and 5/16-24 lug bolts and will fit virtuallyall split and solid rims on todays market.Lug bolt set and locking bolt are included.

Lug Bolts & NutsPart # Description8150 Rear bolt & nut set (4 ea. 1/2-20)8160 Front bolt & nut set (3 ea. 1/4-28)8165 Split rim bolt & nut set, Kart (3 ea. 1/4-28)8170 Rear bolt & nut set, Kart (3 ea. 1/4-28)

Part # Description8200 Front hub bolts (100 ea. 1/4-28)8205 Rear hub bolts, Kart (100 ea. 1/4-28)8220 Split rim bolts, Kart (100 ea. 1/4-28)8225 Lug nuts (100 ea. 1/4-28)

6” KARTING WHEELS

Part # Dia. x Width Offset Style9750 6 x 6 2.50 Machined9752 6 x 6.5 2.50 Machined9760 6 x 8.25 3.0 Machined9762 6 x 8.5 3.5 Machined9763 6 x 8.75 3.5 Machined9765 6 x 9.25 4.0 Machined9766 6 x 10 4.0 Machined

Douglas Q+ Rims for KartsManufactured by Douglas Wheel, all rims are high quality. Machined rims have been turned to true roundness and consistent thickness to provide superior strength and light weight.

4747

RIMS

Part # Dia. x Wid PatternFront Rims9100 5 x 3-1/4” 3/3.259102 10 x 2” Solid integrated hub9103 10 x 2” Spoke integrated hubRear Rims9192 8 x 6 x .160 4/49194 8 x 6 x .160 5/130mm9120 8 x 8 x .125 4/49130 8 x 8 x .125 5/130mm9135 8 x 9 x .125 5/130mm9140 10 x 8 x .125 4/49150 10 x 8 x .125 5/130mm9160 10 x 10 x .125 4/49180 10 x 10 x .125 5/130mm

9090 Optional valve stem (ea.)9091 Optional valve stem (10 pk.)

Rims for Jr. DragstersManufactured by DouglasWheel, all rims are high quality,single piece spun aluminumand polished to a high luster.

Rims for 1/2 Scale Stock& Sprint CarsThese heavy duty, single piece welded rims stand up to the most demanding tracks and are available in either polished aluminum or steel.

Part # Description Pattern

9190 8 x 6 x .190 4/4 alum.9090 Valve Stem (optional ea.)9091 valve Stem (optional 10 pk.)8150 Replacement lug bolt & nut set

Youth Arm RestraintsMade from woven nylon with Velcro® arm adjustments, these restraints are NHRA & IHRA accepted.

Part # Color 2270 Red2272 Blue2274 Black

Tapered Neck Collars

Part # Color2300 Red2302 Blue2304 Black2306 Purple

All other colors are available by request only.

6090 Emergency Shut-off SwitchDesigned for Jr Dragsters, this engine shut off switch can be engaged from a ground-ing switch on the engine or a remote lever mount-ed in the cockpit allowing immediate engune shut-down.

SAFETY EQUIPMENT

Youth from M&R Part # Color2310 Red2312 Blue2314 Black2324 Black*

Adult from TMC

*has back wedge

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DRIVERS SUITSDrivers Suits & Accessories• SFI Approved• Manufactured from ProBan®• Custom color combinations available

Standard colors with white stripesBlack (BK)Blue (BL)Red (RD) - Special Order ColorWhen ordering standard colors with white stripes, add BK, BL, or RD to the part numbers listed in the table below (eg. 5050BL).

Custom colors (background and/or stripes)Green PurpleOrange YellowPink WhiteWhen ordering custom color with white stripes, use part number 5070CC, state color & size.

When ordering custom color stripes, use partnumber 5070CS and state color.Allow 2 to 4 weeks delivery for custom colors.

Note: Bottoms and Tops can not be mixed.

Driver Suit Size TablePart # Size A B C D E F G LegendAdult (all sizes in inches)5050 Sm 16.5 22 44 24 32 39 26 A = Shoulders5052 Med 19 23 48 26.5 36 40 27 B = Arms C = ChestChild (all sizes in inches) D = Neck to waist5054 X-Sm (8) 12 17.5 27 20 25 30 22 E = Waist5056 Sm (10) 13 18 29 20.5 26 31 24 F = Waist to ankle5058 Med (12) 14 18.5 31 21 26 32 26 G = Inseam5060 Lg (14) 15 19 33 22 27 33 275062 X-Lg (16) 16 19.5 35 22.5 28 34 28

E

GF

DC

BA

COD

49

CUSHIONS & PADDING

Part # ColorLarge 17 wd. x 32.5” lg.2383 Black2384 Red2390 Medium Blue

Part # ColorDeluxe Padding(peel off Velcro® back)2413 Black2414 Red2420 Medium Blue

Seat CushionsManufactured by Master Blaster, these cushions are made from 3/4 to 1” thick closed cell foam that is resistant to alcohol, gas and oil.They reduce vibration, provide comfort for round after round of racing.

Part # ColorStd. 15.5 wd. x 28” lg.2370 Black2371 Red2377 Medium Blue

Part # ColorEconomy Padding(peel off sticky back)2400 Black2401 Red2407 Medium Blue

Roll Bar PaddingManufactured by Master Blaster, these pad sets are made from 1/2” thick closed cell foam that is resistantto alcohol, gas and oil and are designed to install easily without tools.

50

SHOP EQUIPMENT & TOOLS

7700 Block OvenFeatures:• Compact bench top design• Evenly heats up to 2 blocks (5 hp. Briggs, Tecumseh etc.)• Heating time of 4 minutes or less• 550° operating range• 0 to 120 minute timer• 1” thick ceramic insulation• 220 volt 1 phase @ 10 amp. operation• 21” wd. x 23” dp. x 22” hi• Weighs 80 lbs.

Part # Description7100 80 grit stone & wiper set7102 180 grit stone & wiper set7104 280 grit stone & wiper set7106 Special aluminum stone set

7210 Cylinder Hone SetFeatures quick expansion to cylinder sizes of 1.750 to 2.750” diameter.Clip on stone and wiper sets can easily be changed in seconds, are available in four different grits and measure3-1/2” long. Set includes hone body and 1 set of 2.35 to 2.75” 180 grit stones & wiperspacked in a sturdy case.

HELICAL COIL THREAD REPAIR

Our helical coil thread repair kits use the same type of coil, same type of installation tools, and the same quality found in the most widely used thread repair system. Each kit contains a drill bit, tap, coil installation tool, and 10 inserts.

Part # Description / Size779925 Side cover, Fan shroud, Gas Tank, Bracket - KIT779955 Insert Only779927 Head Bolts - Kit779957 Insert Only779929 Cassettes, ect. - Kit779959 Insert Only779951 Spark Plug Kit with 6 inserts - No drill required779988 Spark Plug Insert779925 1/4 -20 x .375”779955 1/4 -20 x .375”779927 5/16 -18 x .469”779957 5/16 -18 x .469”779929 3/8 -16 x .562”779959 3/8 -16 x .562”779988 14mm - 1.25 x 3.75”

51

19138 Valve Seat Puller KitManufactured by Briggs & Stratton, this set provideseverything needed to remove stock Briggs valve seats.

Valve Spring Seat Cutters for Briggs• Eliminate valve spring walk• Sets valve spring installation height• Made from high quality tool steel• Also cuts lifter reliefs• Includes locking pilot and cutter

Part # Description7277 .930 OD Cutter (for dual springs)7276 .828 OD Cutter (for stock springs)7280 Chamfer Cutter - Lifter Bore

Part # Description7260 C-Clamp style compressor7262 Briggs factory compressor

Valve Spring CompressorsThe 7262 spring compressor is designed for removal of stock Briggs retainers that do not usekeepers while the 7260 compressor allows removal of after market retainers that use keepers.

GUIDE & SEAT TOOLING

VALVE SPRING COMPRESSORS

52

PORTING & POLISHING SUPPLIESCartridges & MandrelsUsed for finishing, the cartridges are glue bond style and have a 1/8” arbor hole.The mandrels fit both styles of cartridge and have 1/4” shanks to fit standard die grinders or electric drills.Cartridges sold in packages of 10 ea.Round-StraightPart # Size Grit7070 3/8 x 1” 407071 3/8 x 1” 607072 3/8 x 1” 807073 3/8 x 1” 1207074 5/8 x 1” 407075 5/8 x 1” 607076 5/8 x 1” 807077 5/8 x 1” 1207078 5/8 x 1” 180

Spiral-TaperPart # Size Grit7079 3/8 x 1” 807080 3/8 x 1” 1207081 5/8 x 1” 807082 5/8 x 1” 120

Mandrels7085 1/4 x 1/8 x 2”7086 1/4 x 1/8 x 3”

Carbide Rotary FilesDesigned for aluminum and other non-ferrous metals, these files feature special flute widths, finishes and spacing which allows fast stock removal for porting, forming, deburring and chamfering.All files are solid carbide and have 1/4” shanks.

Part # Description Style7220 3/8” Cylinder flat 17221 5/8” Olive 27222 1” Tree 37223 3/8” Tree 37224 1/2” Ball 47225 1/2” Cylinder flat 17226 3/8” Cone 5

7204 Ring CompressorSpecially designed for small engines, this compressor has a range of 1-1/2 to 3” & features a ratchet release.

Flex-Hone®Globules of silicone carbide laminated to the ends of high density nyloncreate a flexible, unbreakable hone that requires no set-up and is selfcentering, self aligning and self compensating for wear.

Part # Dia Grit7090 1/4” 1807091 5/16” 1807092 2-3/4” 1807093 1/2” 1807094 5/8” 1807095 3/4” 1807096 1” 180

5353

LUBRICANTS & OILS

Synthetic Lubricants

Part # QuantityPro-Drive21 - 4 Cycle Oil (<<0w)9800 Quart (ea.)9800-B1 Case of 12 quarts9802 Gallon (ea.)9802-B1 Case of 6 gallonsPro-Power21 - 2 Cycle Oil9804 Quart (ea.)9804-B1 Case of 12 quarts9806 Gallon (ea.)9806-B1 Case of 6 gallons

Without a doubt, this is the best synthetic oil on the market today. Check these outstanding features: Prevents carbon & varnish build-up, Runs cool, Won’t foam up or discolor, Penetrates & coats, Eliminates friction and best of all - It’s safe and Legal.

4195 Dry Graphite LubeUsed primarily on torque converter parts, this dry lube pro-vides a low friction coating that adheres to most surfaces with a minimum of surface preparation and dries in 3 to 4 minutes at room temperature (aprox. 75°).Effective in temperatures up to 850° F (constant) and1000° (intermitant).

Typical uses include:• Pre-assembly lube • Chain• Bearings • Gaskets• Bushings • Springs

Thor Racing OilTHOR Oil is recommended by ARC in methanol fueled racing engines using ARC's billet con-necting rods because it does exactly what a racer should expect oil to do. ZERO carbon, mini-mal wear, great corrosion protection, proper film strength and the durability to provide those features for the entire race. ARC's interest in oil is based on our goal to eliminate oil related connecting rod failures. THOR filled the bill. No fluff, no magic hooey. No matter what you read or what you are told, there is no better oil than Thor. Believe it.Part # Description Quantity9831 Thor Oil Lite Gallon9830 Thor Oil Lite quart9834 Thor Oil Medium Gallon9832 Thor Oil Medium quart9833 Thor Oil Heavy Gallon9835 Thor Oil Heavy quart

54

TIRE TREATMENTS

Please note, we cannot ship Tire Treatments or Fuel Additives via air.

Track-Tac Tire Treatments Not only do these treatments help you get more bite out of your tires, but when you use them properly, they can help increase the life of your tire. But be careful, they work very well and can "lock you down" if overused.

An "active" tire cleaning solution that does not take the prep out of your tire. No more water bucket! Scrape off excessive dirt, spray the tires with Blue Tire Wash, and after a few min-utes, wipe them clean with a terry cloth towel. Contains Dirt Repelling Technology which helps keep the dirt from the track from getting into the pores of your tires.

A "bite" producing chemical for hot, "dry slick" tracks. When you need something to bite through the dust, that won't overly soften the tire and lock you down.

Do you use "goat p" on your tires? Better Than Goat P Red is a product that is safer to handle, better for your tires, and pro-duces almost identical results as "goat p," WITHOUT that nasty smell! Drops durometer 5-35 pts. depending on the number of coats applied and the tire stays soft. For wet tracks. Not the best Cold weather choice. 45* temps and up only.

An almost odorless tire softener that is less aggressive than BTGP-Red. Allows better control in incrementally stepping down the hardness of a tire so you don't go too far too fast. Drops durometer 5-25 pts. depending on the number of coats applied and the tire stays soft.

Another almost odorless tire softener that works faster than the other softeners during cold conditions. It is less aggressive than either BTGP-Red or GK1-Blue, and when topped with a final coat of diluted SST5, or even mixed with a small amount of SST5 will give you tremendous bite in colder conditions. Drops durometer 5-15 pts. depending on the number of coats applied and the tire stays soft. A good "at the track" wipe.

9840 Track-Tac Blue Tire Wash -gallon

9847 Track-Tac Black Sand -quart

9841Track-BTGP red -quart

9844 Track-Tac GK1 blue -quart

9843 Track-Tac PRW green -quart

55

TIRE TREATMENTS

Adds at-the-track bite when used on top of new tires, or tires treated with any of the other Track Tac Treatments. Contains Dirt Repelling Technology which helps keep the dirt from the track from getting into the pores of your tires. Used as a fi nal pre race wipe (PRW) on dry, clean tires. Not a softener.

A powerful softener with a light grape odor second only in strength to BTGP-Red, but unlike BTGP-Red, it is specifically designed to provide extra sticky tread under cold conditions especially below 45*. To get extra bite when it is cold, use SQS at the track as a top coat.

Soft Quick and Sticky! Designed to be used when the temper-ature falls below 45*. It dries quickly. It will soften some and it makes the tires sticky when cold. Excellent for cold conditions when SAA-Grape is used as a base.

Conditioner that does soften. (As much as 25 pts) Takes a week to work in. Considered by many as a better alternative to HL-2. Great for Drag Racing, and Asphalt, as well as dirt.

BITE!!! Not a softener. You need to be careful with this prod-uct as too much will lock you down. Requires at least 8 days to work into the tire. Dilute with Naptha VM&P (cheap paint thinner found in paint dept at Lowe's or Home Depot, etc) => 3 parts VM&P to one part SST5.

A great base conditioner, it does make the tires more durable while building bite and the most important point is it is a zero VOC product based on EPA guidelines. It is also safe enough to ship overnight by air shipment. It is not detectable by VOC "sniffers."

9845 Track-Tac PRW orange -quart

9848 Track-Tac SAA grape -quart

9842 Track-Tac SQS -quart

9849 Track-Tac SST -quart

9846 Track-Tac SST5 -quart

9850 Track-Tac Tire Tuff -16 oz


56

TIRE TREATMENTS


The undisputed track champion for eight years in a row. Reduces lap time 2-5 tenths. Comes in fast and will not go away. Excellent on Enduro Karts. Highly qualified Factory Techs are always available 800-331-9520. This is the single most beneficial race product you can buy. (Also available in gallon size part no. PB7000)

A premium product at a budget price. Designed for the majority of Kart racers. Reduces lap times 2-5 tenths. Increase tire life up to 50%. This product is a "Tire Conditioner." It makes the tread patch of the tire more pliable, but not really softer.(Also available in gallon size part no. PB6000)

Cleans surface and "opens" pores and cleans off the mold release or "glaze" found on sticker tires that needs to be removed before applying Hot Lap or Hot LapII. Use between rounds as a dry grip agent to go even quicker. As a grip agent it can be aggressive if too much is used. Does not stay in the tire long.

Improves 60 foot times. Reduces E.T. up to 2 tenths. Tires run much cooler and last up to 40% longer. Up to 50% less burn out time required.

PB7016 Hot Lap Original for Asphalt or Dirt -16oz.

PB6032 Hot Lap II for Asphalt or Dirt -30oz.

PB7050 Pro Blend Tire Cleaner -30oz.

PB6070 Drag Racing Tire Treatment -gallon

57

FUEL ADDITIVES


TIRE TREATMENTS

Super quick for 50 laps. Works on asphalt or dirt. Dramatically improves qualifying. Excellent on short tracks. Detectable. This product is a "Grip Agent." It improves the traction or bite of the tire.

Designed for racers who get their tires at the last minute. Can be applied to the outside of the tire the day of the race. Dramatically aids in qualifying and the first 10 laps of the main event. Expect 1-3 tenths improvement. Undetectable. Extends Tire Life. One 30oz can is good for 2-3 race week-ends. Asphalt or Dirt

Makes tremendous mid-range torque. Use with gas or alcohol. Significantly increases horsepower. The most powerful addi-tive of all. Mix one 16 ounce can with 10 gallons of Premium Unleaded Gas, Racing Gas, or Alcohol. Re-jetting or timing changes may be required. NOTE: Will not pass fuel check. NOTE: Use No. 1650 CTX-2 if undetectable gas additive is required.

Up to 40 confidential horsepower. Produces strong mid-range torque. Very user-friendly and very consistent. A must for qualifying. Add 1 gallon of CTX-2 to 4 gallons racing gas. 1/2 gallon to 4 1/2 gallons racing gas really wakes up 9:1 motors.

Add to gas only...NOT for methanol. Undetectable

PB5000 Hot Lap Victory Lane -gallon

PB7032 LMT - Last Minute Treatment -30oz.

PB1616 Nitro Power Fast Forward -16 oz

PB1650 CTX-2 Undetectable Fuel Additive -gallon

58

TRAILER ORGANIZERSEagle Race Products Trailer OrganizersGet your trailer contents out of the cabinets, off the floor, and into organized, easy reach with these high quality trailer racks and shelv-ing units made from bright polished aluminum treadplate (aka dia-mond plate). Plates are cut with a CNC plasma cutter and bent with a CNC bender for precise fit and appearance. Mounting hardware is included with powder coated wall-mount units only. Special options include smooth finish (no diamond risers) and red or black powder coating. Please specify options when ordering.

ERP002 Aerosol can shelf (9 cans)6"Hx24"Wx5"D

ERP003 Medium oil can shelf (10 one quart cans)7.5"Hx24"Wx7"D

ERP004 Catch-All Shelf 9"Hx24"Wx9.5"D

ERP007 Super Cool Coat Rack with 4 double hooks6"Hx24"Wx4"D

Floor PlatesERP013 48"Lx12"WERP014 48"Lx16"W

ERP001 Vertical Aerosol Can Rack(6 cans) 34"Hx4"Wx5.5"D

59

TRAILER ORGANIZERS

ERP015 Mounting Hardware (12 pack)

ERP006 3 Tier organizer Shelf32.5"Hx24"Wx9.5"D

(pictured is black option)

ERP012 Two Shelf Multipurpose18"Hx24"Wx13.5"D

ERP005 Super Catch-All Shelf 9"Hx48"Wx9.5"D(picture is black option)

ERP010 Kart Tire Rack 12"Hx38"Wx13.5"D (pictured)ERP011 Kart Tire Rack 12"Hx76"Wx13.5"DRacks come with black powder coated rods and hardware.ERP009 Aluminum Tire Rack Ends only (no rods)

ERP008 Chain/Engine guard forB&S 5hp (1/8" tihick)

6060

SPECIAL REFERENCE SECTION

In this section:

Page Description 60-62 ARC Machining Services 63 Dual Plane Balancing Services 63 Briggs & Stratton Motor Specifications 63 Cylinderhead Torque Pattern 64-66 Building A Modified Briggs Motor 67 Calculation Formulas 68 Timing a Briggs Motor 69 PZ Carburetor Tuning Guide 70 Gear Chart

ARC Machining ServicesYears ago, when we decided to offer a full line of machining services dedicated to the Briggs & Stratton 5 hp. motor, we made an amazing discovery, a complete lack of precision tooling and machinery to accomplish this.Solution - we developed and manufactured our own line of equipment and tooling along with specialized techniques to provide un-equaled precision for sleeving, boring, honing and valve guide & seat work as well as dual plane bal-ancing services. As a result, some of the top engine builders in the country choose ARC for their machining needs.When every second counts - You can count on ARC !

6161

SPECIAL REFERENCE SECTIONARC Machining ServicesWhen ordering machining services, it is important that all the parts that are required to perform the service be sent to us totally disassembled and cleaned. The only bolts we need are the connecting rod bolts. Don’t send any other bolts, nuts or washers.In addition, include a packing list of exactly what you send, what service numbers you want performed and yourname, address and a daytime phone number where you can be reached.

To Start:The base of every block is machined perpendicular and parallel to the crankshaft which is essential for an accurate boring procedure.

Svc # DescriptionStandard Align Boring to Piston SizeS130 Surface block base and align bore.

S132 Surface block base, align bore and surface deck parallel with crank to true up

-S Add -S to above numbers for installing sleeve. You do final boring to piston size.

-SB Add -SB to above numbers to align bore, install sleeve and bore to piston size.

Offset & Angled Align Boring-O Add -O to standard numbers for offset align boring to your spec. note: This puts the crank beyond top dead center when the piston is at top dead center.-A Add -A to standard numbers for angled align boring to your spec. note: This tips the top of the piston down toward the valves which increases flame travel.-OA Add -OA to standard numbers for both offset and angled align boring to your spec. note: This moves the piston away from the valves and tips the top down toward the valves.

Honing:We use our soft touch abrasive sleeves to remove metal.This is a three to six step process (depending on desired finish) of plateau honing and the finish is un-paralleled.Parts required: Block and crankcase cover only.

Align Boring:Our align boring service is unique and one of a kind. This operation is done wet and the block is bored three times to bring it to size with the last pass removing only .0005” material. This leaves a finish so good that honing .001” will remove any tool bit marks remaining in the cylinder.Parts required: Block and crankcase cover.

Svc # DescriptionS140 Standard smooth finish honing

S142 Super smooth finish honing

S144 Ultra smooth finish honing

S146 Super, Ultra smooth finish honing (like glass) note: The smoother the bore is, the less friction there is and the more difficult it is to get rings to seat.

6262

SPECIAL REFERENCE SECTIONARC Machining ServicesValve Guide & Seat WorkAll valve guide machining is done with our process of aligning the lifter bore with the inside diameter of the valve seat (another ARC exclusive). This insures minimal wear of the guides and valves and provides for a much tighter valve stem clearance. Guides are furnished.Parts required: Block and crankcase cover only.

Svc # DescriptionValve Guide Work (includes both guides - furnished)S170 Install stacked (4) stock Briggs # 555155 guides (WKA legal). You do final sizing.

S171 Install 2 ARC # 6195 guides and ream to .248”. You do final sizing.

S172 Install 2 ARC # 6195 guides, knurl to .243” then ream to .248” for oil retention. You do final sizing.

-F Add -F to above numbers for finish sizing to a clearance of .002 to .0025”.

Valve Seat WorkS180 Remove and replace stock valve seats (WKA legal). Seats sold separately.

S182 Install large seats for oversized valves. Seats sold separately.

Valve WorkServices are for both valves & seats. Oversize valves sold separately.Parts required: Block, crankcase cover, valves, lifters and cam

Svc # DescriptionS190 Cut 1 angle in seat, 1 angle on valve and micro polish valve stem (WKA legal).

S192 Cut 3 angles in seat, 2 angles on valve and micro polish valve stem.

S194 Machine lifter reliefs.

S195 Machine valve spring reliefs (specify single or dual springs).

S196 Set valve lash (stock lifters and valves)

S198 Set valve lash (oversized lifters and valves)

Crankshaft and other Miscellaneous Services

Svc # DescriptionS202 Polish crankshaft. Parts required: Crankshaft only.S204 Set end gap on top piston ring. Parts required: Block and piston ring.S206 Install DU bushing. Parts required: Block only.S208 Slip-fit bearing on crankshaft. Parts required: Crankshaft and bearingS209 Crankshaft Balancing Parts required: Crankshaft, rod w/bearing, piston, wrist pin & clipsS210 Crankshaft Journal Grinding Parts required: Crankshaft only.S211 Cut down Piston top Parts required: Piston only.

6363

SPECIAL REFERENCE SECTION

Briggs & Stratton 5 hp. Motor Specifications

Pistons & RingsPiston clearance .001 to .002 (Raptor III)Ring end gap (stk.) .001 to .002Ring end gap (Dykes L) .010 to .012Compression height (stk.) 1.1870 +/- .0020

Connecting RodLength (stk. cntr to cntr) 3.8730 +/- .0020Wrist pin bore .4910 +/- .0005Wrist pin diameter .4895 +/- .0005Crank journal bore 1.0010 +/- .0005Rod & piston overall length 5.0650 +/- .0030

CrankshaftJournal diameter .9985 +/- .0005Rod clearance (journal) .0030 to .0035

Valve GuidesStem clearance (stk.) .0030 to .0040 Int. .0040 to .0050 Exh.Bronze guide stem clearance .0015 to .0020 Int. .0020 to .0025 Exh.

ValvesStem diameter (stk.) .2470 +/- .0005 Int. .2470 +/- .0005 Exh.Valve lash (stk.) .0050 to .0070 Int. .0090 to .0110 Exh.

Torque SpecificationsRod bolts (stock) 100 in./lbs.Rod bolts (ARC billet) 150 in./lbs.Head bolts 140 in./lbs.

Cylinder Head Torque PatternApplys to all cylinder heads used on Briggs & Stratton 5 hp. motors.

Note:On a stock Briggs cylinder head:#2 and #5 use part no. 555045 head bolts.#3 uses part no. 555082 studded head bolt.

Torque to:140 in./lbs. (stock heads)150 in./lbs. (ARC heads)

Special note:Always torque a head when the motor is cold.

ARC Dual Plane Balancing ServicesSingle cylinder engines are inherently unbalanced and require special procedures because of their high operating speeds (rpm). While these engines should be balanced for smoother operation, they will never be as vibration free as 6 or 8 cylinder engines - but - our precision balancing could improve your engines performance considerably depending on your combination of crankshaft, connecting rod, piston & pin, rings (and if desired flywheel).

Here’s our procedure (don’t tell anyone):1) Weigh the piston, wrist pin & locks, rings and pin end of the connecting rod to obtain the reciprocating weight.2) Weigh the crank end of the connecting rod, bearing, bolts & washers to obtain the rotating weight.3) Calculate a percentage of these two weights to determine the bobweight that’s needed.4) Bolt the bobweight to the rod journal of the crankshaft and install the assembly on our Stewart/Warner balancer.5) Spin the crankshaft and balance within tolerance both left & right counter weights and force & couple.6) If desired, bolt on the flywheel and clutch unit and balance again if needed.Note: If you change the connecting rod and/or piston & rings, the crankshaft may need to be rebalanced.

6464

SPECIAL REFERENCE SECTIONBUILDING A MODIFIED BRIGGS MOTOR

The Basics:Block Selection:The late model motor sports, Raptor and Raptor II & III blocks are the better choice because they have a much heavier casting in the cylinder area than the early model blocks which makes them stronger and able to withstand much larger overbores.If you’re not sure what type block you have, a simple way to tell is by looking at the front head bolt hole. If it only goes through 2 fins, it’s an early model block. If it goes through 4 fins, it’s a late model block and will have between .070 and .080” more material around the cylinder bore (making it the better choice).In addition, the Raptor and Raptor II motors have a cast-in strap that ties the intake port to the block just above the breather port. Kool Bore (aluminum) vs. IC (steel sleeve) ??As far as stock motors go, the Kool Bore has a tendency to wear more in the cylinder walls and will probably require “freshening-up” a little more often than the IC motor. On re-bores, you will sometimes run into a hole or flaw in thecasting and then it will have to be sleeved.On the other hand, the IC motor has a cast-in steel sleeve which will have better cylinder life but, they can’t bebored out very large. It’s not uncommon to hit aluminum at .060” overbore because the sleeve was cast-in crooked.When this happens, the old sleeve must be carefully cut out then replaced with a new one.If you just want a big bore motor, start with the Kool Bore block, bore it as far as you can then sleeve it. Dual bearing block vs. Single bearing block with DU bushing ??Unlike the early model dual bearing blocks that had a thin casting at the top end, the newer castings are all thicker so the answer to this question is strictly personal preference.

Crankshafts:Stock crankshafts have been known to run 12,000 rpm without any failure. Hardening these cranks doesn’t add any overall strength but will add longevity to the rod and bushing journals.

Pistons:Stock pistons can be run up to about 7500 rpm. After that, their strength is questionable.Aftermarket pistons can withstand a much higher rpm range.

Connecting Rods:If the engine is going to run above 7200 rpm, install an aftermarket billet rod otherwise the stock Briggs rod with inte-grated dipper works fine but it should be changed after 5 races.

Valve Guides:When a Briggs motor is brand new, the valve guides are sloppy, plus it’s not uncommon to find that they aremisaligned with the lifter bores. Some work is needed here.

Valves:There’s absolutely nothing wrong with stock valves. They’re a little small for all out performance but they are good.

Valve Springs:Generally, stock valve springs work well up to about 6500 rpm. Above that, they tend to fail.

Lifters:The stock lifters are very durable but probably won’t be long enough if you install an aftermarket camshaft.

Camshafts:The stock cam allows the motor to run about 5000 to 6000 rpm and just isn’t a precision cam.

6565

SPECIAL REFERENCE SECTIONBUILDING A MODIFIED BRIGGS MOTOR

The Basics (continued):

Cylinder Head:There’s nothing special here.

Ports:The intake port is a little small and has some rough casting in it.The exhaust port is to big and has some rough casting in it also.

In The Beginning:You can’t compress it if you don’t get it to flow first:There are a thousand different opinions on port design. The following is just a general guideline.The intake port should be relatively smooth but not polished smooth. A super slick finish will flow real well but the airand fuel mixture will not stay atomized. On the other hand, a super slick exhaust port works just fine.The exhaust port is to big and should be reduced (our part # 6130 is designed to do this).The rule here is: an exhaust port should be 15% smaller than the intake port.

Designing the Ports:Use some imagination and think simple.Imagine a straight line from the center of the inlet or outlet of each port to the center of each valve seat. Or betterstill, take a small shanked screwdriver and hold it in that position to see what needs to be done. Remember, sharp corners and angles reduce air flow.Special Note: If you plan on putting larger valves in do it first. Because putting larger valve seats in after the block is bored will distort the top of the cylinder.

Compression Ratios - Don’t worry about it:Food for thought: If you mill a cylinder head to increase compression, you will more than likely reduce air flow.Here is an example using a stock Briggs motor:At cranking speed (using an electric starter and compression gauge) the motor takes in about 2 cups of air & fuel and the compression gauge reads 110 psi.

Now, same motor with the head milled (to increase compression) takes in 1-1/2 cups of air & fuel and the compres-sion gauge reads 130 psi.Yea, you increased compression but you just went backwards in horsepower the motor can produce (why).

Now, same motor without a milled head (but you did a good job of porting & polishing) takes in 3 cups of air & fuel and the compression gauge reads 140 psi.

Now you’re on the right track for producing horsepower.

Note: A compression gauge and electric starter are great tools for testing and checking as long as you always check the same way every time. If the carburetor is on the motor, make sure the throttle is wide open.Document your results each time and for each motor you test and remember:

The 3 Most Important Things for Producing Horsepower are AIR FLOW, AIR FLOW & AIR FLOW

6666

SPECIAL REFERENCE SECTIONBUILDING A MODIFIED BRIGGS MOTORLarger valves improve flow:Stepping up to a 1-1/8” exhaust valve and a 1-1/4” intake valve will help to improve air flow, but you must still dosome porting and polishing.If you do go to larger valves, this would be a good time to fix the valve guides also. For this, use the ARC # 6195full length bronze guides.

Camshaft selection:This is the most important decision you must make (and so many people make the wrong choice).The cam will dictate the rpm range of your motor and generally speaking, many people put to much cam in themotor then wonder why it doesn’t work.More lift in the cam translates to higher motor rpm to produce more horsepower. However, higher rpm sometimes results in motor fatality. If you’re not sure of your selection, be conservative. If you need help - give us a call.

Bore size:You won’t notice any significant horsepower increase from stock to +.030 or +.040 oversize, but you will seea difference from +.100 oversize or more.

Cylinder wall finish:There are many different theories about cylinder finishes but in reality, the cylinder wall and rings must weartogether at run-in to seat properly. To accomplish this, a compatible cross hatch pattern must be in the cylinder wall.After this happens, you can address the friction problem by using a piece of very fine sandpaper wrapped aroundthe cylinder hone.The best way to break-in a new motor is on an electric run-in stand (see page 48).Don’t forget, good cylinder wall & ring seal improves air flow and compression.

Angle boring:Tipping the top of the piston toward the valves improves the flame travel over the top of the piston.

Offset boring:Moving the bore away from the valves improves the geometry between the crank pin and the wrist pin. This helpsfor quicker acceleration and is friendly at high rpm, but increases the distance for flame travel.Moving the bore closer to the valves increases bottom end and midrange torque and shortens the distance forflame travel.

Angle & Offset boring:This is all trick stuff that some people love and some don’t. You be the judge.

Cylinderheads:The line of ARC heads are as good as any and better than most currently on the market.The number after the “S” prefix (eg. S437) indicates the depth of the combustion chamber.

Tips & Tidbits:1 For every .001” wear in the cylinder wall and/or on the diameter of the rings, the ring end gap increases by .003”.2 Scuffing on the wrist pin, sides of the piston or cylinder wall indicates that the align bore of the motor is off or the bores on the connecting rod are not parallel.3 The base of the block should always be machined flat and parallel to the crank before any boring operation.4 A good way to experiment with compression ratios is with different thickness head gaskets.5 Clearances between the piston and head, valves at maximum lift and head should be at least .020”.6 A leak-down tester is a handy tool to have.7 Never use copper or aluminum head gaskets unless the deck of the block and head are super smooth.

6767

SPECIAL REFERENCE SECTIONCalculation FormulasStock Briggs specifications:Deck height: 6.2835Rod length: 3.8750Compression height: 1.1900Rod bore (crank): 1.0010Rod bore (wrist pin): 0.4910Cylinder bore: 2.5620Stroke: 2.4370

To calculate cubic inch displacement (cid):bore x bore x stroke x .7854 = cideg. 2.562 x 2.562 x 2.437 x .7854 = 12.5633

Stroke is measured from the center line of the crank bearing journal to the center line of the rod journal multiplied by 2.Deck height is measured from the center of the crank bore to the deck of the block.Rod length is measured from the center of the crank bore to the center of the wrist pin bore.Compression height of a piston is measured from the center of the wrist pin bore to the top of the piston.

Rod length & compression height - made simple

To calculate rod length:deck height - (stroke / 2) - compression height = rod lengtheg. 6.2835 - (2.437 / 2) - 1.190 = 3.875

To calculate compression height:deck height - (stroke / 2) - rod length = compression heighteg. 6.2835 - (2.437 / 2) - 3.875 = 1.190

What is the proper timing on a Briggs motor ?All flywheel and coil combinations (regardless of brand) will tend to retard over a given rpm range.Knowing how much and when this happens is the key to getting maximum horsepower from your motor.

Example:Static timing is set at 30° BTDC (Before Top Dead Center)

Engine Briggs timing ARC timingRPM retards to retards to3000 20° BTDC 26° BTDC6000 16° BTDC 23° BTDC9000 14° BTDC 22° BTDC

As you can see, there’s a big change in timing as rpm increases.

If you install a Briggs flywheel on a motor using a stock crankshaft key, your static timing will be approximately23° BTDC. This can vary by plus or minus 1° because of mass production tolerances of the Briggs motor and willoccur regardless of who’s flywheel and coil combination you’re using (including ours).

Optimum stock ignition timing should be set according to the cam manufacturer’s specifications.

Engine design such as bore, stroke, cam, piston, compression, carburetion, cylinderhead, and intake and exhaust porting and polishing will also have an effect on what the timing should be.

Once you’ve figured out all that, now you have to factor in weather conditions like temperature, air quality, humidity, altitude and your fuel mixture because these also play a part in what the timing should be.And now, if you’re not totally confused, you can add in the total car and driver weight, gear ratios etc.

If you want to take a simple approach to this complex subject - read the next page.

6868

SPECIAL REFERENCE SECTIONIgnition Timing - The simple approachInstall an ARC billet flywheel (see page 21) using a stock Briggs key. Loosen the 6 bolts and rotate the aluminum body counter clockwise so that all of the degree marks are to the left of the single mark on the steel hub then tightenthe bolts. You now have a static timing of aprox. 23° BTDC and the motor will crank-up and run.Note: Each mark on the flywheel body represents 2°. Half way between marks is aprox. 1°.Make some test runs and document your results. Advance the timing in 2° increments until you reach the besthorsepower then back off in 1° increments until you peak out.Special Note: The Non Adjustable 3 hp Dia. Flywheels have approx. 6° advance built in.

When does the coil fire ?A typical coil will fire when the trailing edge of the pole shoe passes under the trigger button at about its halfwaypoint (see figure 1).The optimum distance between the coil and the flywheel is approximately .012 to .015” (Stock Flywheel) and .040 - .050” (Billet Flywheel) and can easily be set with4 pieces of typing paper placed between the coil legs and the flywheel while tightening the coil mounting screws.

If you’re using a timing light don’t bother shooting the flywheel unless you just want to see exactly where the coilfires at different rpm. The relationship between flywheel and coil remain the same regardless of crankshaft position.

If you’re using the ARC billet side cover (see page 21), the best way to check your timing is to use the timing lighton that side of the motor because we have machined timing marks into it.

Using a degree wheel & pointer mounted on the flywheel side, find Top Dead Center (TDC).Now, with the torque converter (or clutch assembly) installed, mark or file a small groove on it adjacent to the groove on the side cover located just above 9 o’clock making sure the motor is still on TDC (see figure 2).

IMPORTANT: Be sure the motor is on absolute TDC or your timing will not be accurate.

With the motor running and timing light connected, you will see exactly where the timing is set.

figure 1

figure 2

69

ANIMAL CARBURETOR TUNING GUIDEPZ Carburetor Tuning GuideIdle / Low SpeedTurning off the engine at idle & low speeds is accomplished by adjusting the idle mixture screw (555586) or changing the size of the pilot jet (555594) (also called slow jet). The jet size or diameter in millimeters is stamped on the jet (32=32mm orifice). The idle mixture screw is an air bleed adjustment, so closing the screw or turning it clockwise will richen the fuel mixture. To adjust the idle mixture screw, proceed as follows: Turn the idle mixture screw in until it lightly seats or stops. back the screw out the specified number of turns. Warm the engine & set the idle speed screw slightly higher than the desired idle rpm. Turn the idle mixture screw in or out to obtain the highest rpm. Turn the idle speed screw to the desired idle rpm. A slightly rich idle mixture is usually better for accelera-tion. If a smooth idle cannot be obtained with the idle mixture screw between 1/4 - 2 1/4 turns out from closed, a different size pilot jet will allow for smooth acceleration from an idle & steady engine speed up to throttle opening.

PZ Carburetor General SpecsGasoline Part#Main Jet #95 112-T051-095-0Pilot Jet - slow #32 112-T055-032-0Jet Needle BGB 2nd notch 102-T045-BGB-00

Main Nozzle Diameter 2.6mmIdle Mixture Screw turns out- 1 1/2Float Height* 22.0mmFloat Drop 24.0mmSlide Cutaway 2.5mm

*To check Float Height - Remove float bowl & hold carburetor upside down. Allow float to rest on the inlet needle. Measure from the fuel bowlmating surface to the bottom edge of the float. bend tab where it makes contact witht he inlet needle as needed to obtain the correct float height.

Torque Specifications

Bowl Screws 17-20 in - lbsPilot Jet 9-12 in - lbsNeedle Jet 14-16 in - lbsMain Jet 9-11 in - lbs

Midrange / Part ThrottleThe jet needle (555602) primarily controls fuel flow between 1/4 & 3/4 throttle fuel opening. The jet needle has five notches & a C-clip (555XXX) on the top of it. to richen the part throttle opera-tion, move the clip to teh next lower notch. to lean the part throttle operation, move the clip to the next higher position. The high-est notch (fartherst from the tip) is considered the 1st position. Needle taper reference letters are stamped on the needle foridentification.

High Speed / Full ThrottleThe main jet (555536-gasoline & 55553 -alcohol) controls the fuel flow at throttle positions of 1/2 to full throttle. The jet size ordiameter in millimeters is stamped on the jet. Altitude and weather conditions can affect the engine operation enough to require a smaller main jet. High air temperature, humidity, or altitude could require a smaller main jet. Low temperature, humidity, or altitude would require a larger diameter main jet. Running the engine with an improper main jet size could result in a loss of power or engine damage.

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