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RETAIL CATALOG

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ORDER INFORMATIONORDERING BY PHONE AND ONLINE We accept Visa, MasterCard, and American Express (or you may send a Money Order). We ship UPS ground, unless otherwise requested. Our website - www.powroll.com offers secure online ordering.RETURNS Call for a Return Authorization number. Merchandise in new, unused condition will be accepted for credit up to 30 days after the invoice date. Returns will be charged a 20% restocking fee.DAMAGE CLAIMS Damage/missing product claims must be filed with us immediately (the same day the package is received). Save the shipping container and all packing materials for inspection by the carrier. Only claims handled in this manner will be accepted.LIMITED WARRANTY* To the original purchaser, POWROLL warranties its products to be free from defects in materials and workmanship. It is the responsibility of the purchaser to inspect all goods carefully before use. Any returns are to be made before the product is used. Credit, repair, or replacement of goods is predicated upon factory inspection of the product in question.

Because we cannot control application or maintenance, the products in this catalog are sold without any express or implied warranty of merchantability or fitness for a particular purpose. POWROLL shall not under any circumstances be liable for any special, consequential, or incidental damages -- including but not limited to; bodily injury, loss of profits or revenue, loss of other property or equipment, costs of purchased or replacement goods or claims of customers of the purchaser, which may arise and/or result from the sale, installation, or use of these parts. Products in this catalog are designed for closed course racing applications only. Powroll Inc. reserves the right to refuse service, products and/or information to anyone. *Subject to applicable state law.

USE OF THESE PRODUCTS MAY VOID ORIGINAL MANUFACTURER’S WARRANTY ON YOUR BIKE.Prices, Specs & Availability Subject to Change Without Notice

POWROLL MOTOR PERFORMANCEPHONE: 541-923-1290 FAX: 541-923-5637 ORDERS: 1-800-POWROLL ADDRESS: SHIP: 13840 Commercial LP Crooked River OR 97760 MAIL: PO Box 920 Redmond OR 97756WEBSITE: www.powroll.com EMAIL: mail@powroll.com HOURS: 8am - 5:30pm M-Th, 8am – Noon Friday

POWROLL PRODUCT INFORMATIONDescriptions and Definitions of terms we use to describe our products & services.

PISTON KITSMachine work and installation not included in price.

‘PISTON KIT - STANDARD HI COMP’Stock sized piston w/ taller dome, will increase compression but not displacement. REQUIREMENTS: Installs in place of your stock piston. No boring required, clear-ances should be checked.

‘PISTON KIT - BORE-IN’This kit includes a piston that is larger than stock size that will bore into the stock cylinder sleeve. REQUIREMENTS: Stock cylinder will need to be bored to fit the Powroll piston.

‘PISTON KIT - RE-SLEEVE’Piston size is larger than acceptable limits for stock sleeve. A larger sleeve is included with these kits. REQUIREMENTS: Stock cylinder will need the sleeve removed, the cylinder bored to fit the Powroll sleeve, and the Powroll sleeve bored to fit the Powroll piston.

‘PISTON KIT - RE-SLEEVE (Case Mach Req’d)’These kits require a sleeve (see PISTON KIT - RE-SLEEVE above), but the new sleeve is larger than the hole in the cases. REQUIREMENTS: The same procedure as PISTON KIT - RE-SLEEVE above, plus the cases split, then bored to accept the larger sleeve.

BORING & RESLEEVINGCall for price and availablilty.

STROKER CRANKSStroke work is done on your good crank assembly, we do not have cores or new cranks for exchange.Send in your crank assembly (with all pressed-on parts), we do the work, and send it back to you assembled and ready to install.

‘STROKE’Price shown is for the stroke work on your good stock crank assembly. It does not in-clude ANY parts. If your crank needs a new rod or other parts, these will be extra.

‘BORE & STROKE COMBINATION’This is a kit including the Piston Kit, plus stroke work. Due to design, the components will not work separately, and are only sold as a kit.

‘STROKE W/ ROD ASSY’‘STROKE W/ TOUGH ROD ASSY’

This price includes the work done on your crank, a new stock rod or stronger ‘Tough Rod’, pin and needle bearing. If other parts (cam sprocket, main bearings, etc) are needed, these will be extra.

‘STROKE W/ TOUGH ROD’This is the stroke work with a stronger rod. Pin, needle bearing and other parts are not included in this price.

CAMSHAFTS

‘BILLET’Made from new material. There is no core required for a Billet cam.

‘HARDWELD (core required)’A hardweld cam is made by adding material to a good stock camshaft.Hardweld Camshaft prices will be listed like this:$175.00 on your good core (#12761), or $255 outright (#12761-22761G)The first price is the cost of hardwelding the cam, this is the price if you send in a good core.The second price (“outright”) is the cost of hardweld work and a new stock camshaft. You will pay this if you do not send a good core. SENDING A CORE?Work will be done on your stock core. Turn around approximately 3 weeks.NOT SENDING IN A CORE?The price you pay will be the “outright” price listed. .

‘HARDWELD (no core required)’Same as above, but no core charge. Do not return your core for credit.

CAM AND ROCKER CORESCores for hardweld must meet Powroll’s standards, and include all pressed-on parts. ROCKER CORES: Damage to the shaft area is not acceptable. CAM CORES: Scoring on the lobes is acceptable. Journal area damage, or damage to the timing sprocket holder is not acceptable. If bearings were included on the Powroll cam, your core must also have the same bearings for complete credit. A copy of the original invoice must accompany all core returns, if no copy is available, send your name and phone number from your original order. Call before sending a damaged core.

SPECIAL ORDERSome items are listed as “special order”, these require additional lead time, a minimum of 3 weeks, sometimes longer. Prepayment may be required.

PG 3 HONDA MOTORCYCLES THESE ITEMS FIT ALL OHC 50’s & 70’s

CAMCHAIN - POWROLL HEAVY DUTY $20.00 #18540 Stronger and less expensive than the OEM Honda chain. VENTED VALVE CAP $45.00 #18530 Choose Gold, Blue, Red or Silver.CLUTCH SPANNER SOCKET $9.95 #18541

HONDA CRF50 & XR50, ALL YEARSPISTON KIT - STANDARD 39mm HI COMP

13:1 Compression $140.00 #00325F 15:1 Compression $150.00 #00360 INCLUDES: Piston, pin, ringsoctane+.

PISTON KIT - BORE-IN 82CC $165.00 #00334 50mm piston, 13:1 compression. INCLUDES: P TIONS: Bikes ridden at or near sea level may run better with a mix of 1/2 race gas and 1/2 pump.

STROKE W/ TOUGH ROD ASSEMBLY +9.5mm $375.00 #16087RA 100cc’s with 50mm piston. INCLUDES: Powroll Tough Rod Assembly: Rod, pin, needles. Work done on your crank. REQUIRES: Send crank for work, see pg 2. RECOMMENDATIONS: Works best with Powroll pistons. Modifications may be required if using other brands.

CAMSHAFT - BILLET - RACE GRIND $150.00 #12755B Lift .266” IN/.266” EX. Duration 210° IN/206° EX @.050” Uses stock bearings - not included.

CARB - 19mm KEIHIN $270.00 #20537KIT INCLUDES: Pre-Jetted Carb, Throttle Assembly (fits 7/8” bars), Special Hi-Velocity polished aluminum manifold, 3 Extra Main Jets, Intake Gasket, Mounting Hardware, K&N Filter, Installation and Jetting instructions. RECOMMENDATIONS: Works best on engines 82cc and larger.

EXHAUST - THRUST CHAMBER - Spark Arrested $45.00 #17102 Works with stock spark arrestor. Choose Gold, Silver or Red. THRUST NOZZLE - Not Spark Arrested $45.00 #17102N Replaces the stock spark Arrestor unit. CLUTCH - TITANIUM CLUTCH WEIGHTS - STARTER PACK - 4 Weights $15.00 #16852 SUPER PRO PACK - 16 Weights $50.00 #16853

Can be installed in groups from 4-16. The more ti weights you run, the higher the engagement rpm.INCLUDES: Starter Pack = 4 weights. Super Pro Pack = 24 Weights. Detailed installation instructions.

HONDA Z50 1992-1999PISTON KIT - STANDARD 39mm HI COMP

13:1 Compression $140.00 #00325F ~or~ 15:1 Compression $150.00 #00360 INCL: Piston, PISTON KIT - BORE-IN 82CC $165.00 #00334 50mm piston, 13:1 compression.

IRECOMMENDATIONS: Bikes ridden at or near sea level may run better with a mix of 1/2 race gas and 1/2 pump.

STROKE W/ TOUGH ROD ASSY 9.5mm $375.00 #16087RA 100cc’s with 50mm piston. INCLUDES: Powroll Tough Rod Assembly: Rod, pin, needles. Work done on your crank. REQUIRES: Send crank for work, see pg 2. RECOMMENDATIONS: Works best with Powroll pistons. Modifications may be required if using other pistons or cams.

CAMSHAFT - BILLET - RACE GRIND $140.00 #12755B Lift .266” IN/.266” EX. Dur. 210° IN/206° EX @.050”

HONDA Z50 1982-1987BORE & STROKE COMBINATION 100cc $550.00 #00006R-16000RA 50mm Bore, 9.5mm Stroke 11:1 Compression

INCLUDES: Stroker with Rod Assembly: Powroll Tough Rod Assembly: Rod, pin, needles. Work done on your crank. Piston Kit: Piston, pin, rings, clips, headgasket,

PISTON KIT - OVERSIZE FOR 100cc $175.00 #00006RA 50.25mm piston, 11:1 compression+ .010” Oversize for 100cc kit shown above. INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Boring.

HONDA Z50 1968-1981PISTON KIT - BORE-IN 80CC $160.00 #00005N 49.5mm Piston, 8:1 Compression.

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Honda 70 Cylinder - NOT INCLUDED. Boring, rejetting. PISTON KIT - OVERSIZE FOR 80cc KIT $160.00 #00005NB 50mm Piston, 8:1 Comp

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Boring of 70 cylinder.BORE & STROKE COMBINATION 100cc $550.00 #00006R-16000RA 50mm Bore, 9.5mm Stroke 11:1 Compression

INCLUDES: Stroker with Rod Assembly: Powroll Tough Rod Assembly: Rod, pin, needles. Work done on your crank. Piston Kit: Piston, pin, rings, clips, hea

PISTON KIT - OVERSIZE FOR 100cc KIT $175.00 #00006RA 50.25mm piston, 11:1 compression + .010” Oversize for 100cc kit shown above. INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Boring

CAMSHAFT - HARDWELD, NO CORE REQ’D - MID-TOP END GRIND $195.00 #12601N Lift .238” IN/EX. Hardweld cam on a new stock core. No core exchange required.

PG 4HONDA MOTORCYCLES HONDA CRF70 & XR70, ALL YEARSPISTON KIT - BORE-IN 80CC $165.00 #00320 49.5mm piston, 11:1 compression.

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket.REQUIRES: Boring, rejetting. RECOMMENDATIONS: 98+ Octane.PISTON KIT - OVERSIZE FOR 80cc KIT $165.00 #00320B 50mm piston, 11:1 compression

+.020” STROKE W/ TOUGH ROD ASSY 9.5mm $375.00 #16050RA 100cc’s with 49.5mm Piston.

INCLUDES: Powroll Tough Rod Assembly: Rod, pin, needles. Work done on your crank. REQUIRES: Send crank for work, read pg 2. RECOMMENDATIONS: Works best with Powroll pistons. Modifications may be req’d w/ other piston or cam brands.

CAMSHAFT - BILLET - RACE GRIND $150.00 Cam #12746B Lift .266” IN/.266” EX. Duration 210° IN/206° EX @.050” Uses stock bearings - not included.

CARB - 19mm KEIHIN $270.00 #20538INCLUDES: Pre-Jetted Carb. Throttle Assembly (fits 7/8” bars). Special Hi-Velocity polished aluminum manifold. 3 Extra Main Jets. Intake Gasket. Mounting Hardware. K&N Filter. RECOMMENDATIONS: Works best on engines with at least a Powroll high compression piston and cam.

EXHAUST - THRUST CHAMBER - Spark Arrested $45.00 #17102 Works with stock spark arrestor. Choose Gold, Silver or Red. THRUST NOZZLE - Not Spark Arrested $45.00 #17102N Replaces the stock spark Arrestor unit. CLUTCH - TITANIUM CLUTCH WEIGHTS - STARTER PACK - 4 Weights $20.00 #16852 SUPER PRO PACK - 24 Weights $75.00 #16854

Can be installed in groups from 4-16. The more ti weights you run, the higher the engagement rpm.INCLUDES: Starter Pack = 4 weights. Super Pro Pack = 24 Weights. Detailed installation instructions.

HONDA CT70 1991 & LATERPISTON KIT - BORE-IN 80CC $165.00 #00320 49.5mm piston, 11:1 compression

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket.REQUIRES: Boring, rejetting.RECOMMENDATIONS: Bikes ridden at or near sea level may run better with a mix of 1/2 race gas and 1/2 premium pump fuel.

PISTON KIT - OVERSIZE FOR 80cc KIT $165.00 #00320B 50mm piston, 11:1 compressionINCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Boring, rejetting. RECOMMENDATIONS: Bikes ridden at or near sea level may run better with a mix of 1/2 race gas and 1/2 premium pump fuel.

STROKE W/ TOUGH ROD ASSEMBLY 9.5mm $375.00 #16050RA 100cc’s with 49.5mm Piston.INCLUDES: Powroll Tough Rod Assembly: Rod, pin, needles. Work done on your crank. REQUIRES: Send crank for work, see pg 2. RECOMMENDATIONS: Works best with Powroll pistons. Modifications may be required if using other piston or cam brands.

CAMSHAFT - BILLET - RACE GRIND $150.00 Cam #12746B Lift .266” IN/.266” EX. Duration 210° IN/206° EX @.050” Uses stock bearings - not included.

HONDA CT70 1982-1990PISTON KIT - BORE-IN 80CC $165.00 #00329 49.5mm piston, 11:1 compression.

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Boring, rejetting.STROKE W/ TOUGH ROD ASSEMBLY 9.5mm $375.00 #16050RA 98cc’s with 49.5mm Piston.

INCLUDES: New Rod, pin, needle assembly. Work done on your crank. REQUIRES: Read page 2 for details on shipping cranks to us. RECOMMENDATIONS: Works best with Powroll pistons. Modifications may be required if using other piston or cam brands.

HONDA CT70 - Through 1981PISTON KIT - BORE-IN 82CC $175.00 #00006R 50mm piston, 11:1 compression.

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Boring, rejetting.PISTON KIT - OVERSIZE FOR 82CC KIT $175.00 #00006RA 50.25mm piston, 11:1 compression

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Boring, rejetting.STROKE W/ TOUGH ROD ASSEMBLY 9.5mm $375.00 #16000RA 100cc’s with 50mm Piston.

INCLUDES: Powroll Tough Rod Assembly: Rod, pin, needles. Work done on your crank. REQUIRES: Send crank for work, see pg 2. RECOMMENDATIONS: Works best with Powroll pistons. Modifications may be required if using other piston or cam brands.

CAMSHAFT - HARDWELD, NO CORE REQ’D - MIDRANGE GRIND $195.00 #12601N Lift .238” IN/EX

HONDA ATC-CL-SL-TRX 70, ALL YEARSPISTON KIT - BORE-IN 82CC $175.00 #00006R 50mm piston, 11:1 compression.

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket REQUIRES: Boring, rejetting.PISTON KIT - OVERSIZE FOR 82CC $175.00 #00006RA 50.25mm piston, 11:1 compression

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Boring, rejetting.STROKE W/ TOUGH ROD ASSEMBLY 9.5mm $375.00 #16000RA 100cc’s with 50mm Piston.

INCLUDES: New Tough Rod, pin, needle assembly. Work done on your crank. REQUIRES: Send crank for work, see pg 2. CAMSHAFT - HARDWELD, NO CORE REQ’D - MIDRANGE GRIND $195.00 #12601N Lift .238” IN/EX

HONDA XR75 1977-1978 & XL75 1977-1979PISTON KIT - BORE-IN 80CC $160.00 #00147N 49.5mm piston, 9.5:1 compression.

INCLUDES: Piston, pin, rings, circlips, headgasket. REQUIRES: Boring, rejetting PISTON KIT - OVERSIZE FOR 80CC $160.00 #00147NB 50mm piston, 9.5:1 compression.

INCLUDES: Piston, pin, rings, circlips, headgasket. REQUIRES: Boring, rejetting STROKE 9.5mm $275.00 #16029 98cc’s with 50mm piston.

INCLUDES: Work done on your crank. No parts included. Your crank may require additional parts. REQUIRES: Send crank for work, read pg 2.CAMSHAFT - HARDWELD, NO CORE REQ’D - MID-TOP GRIND $195.00 #12601N Lift .238” IN/EX VALVE SPRINGS $50.00 #24001 These utilize your stock retainers and work well with most aftermarket cams.CLUTCH SPRINGS $21.00 #16785

PG 5 HONDA MOTORCYCLES HONDA XR75 1973-1976PISTON KIT - BORE-IN 80CC $160.00 #00036N 49.5mm piston, 9.5:1 compression.

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Boring, rejetting. PISTON KIT - OVERSIZE FOR 80cc KIT $160.00 #00036NB 50mm piston, 9.5:1 compression.

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Boring, rejetting. STROKE 9.5mm $275.00 #16015 98cc with 50mm piston.

INCLUDES: Work done on your crank. No parts included. Your crank may require additional parts. REQUIRES: Send crank for work, see pg 2. RECOMMENDA-TIONS: Works best with Powroll pistons. Modifications may be required if using other piston or cam brands.

EXHAUST - POWROLL PERFORMANCE $250.00 #18336 Powroll oversize header and 3” Supertrapp, Spark Arrested.

HONDA CRF80 & XR80, ALL YEARSPISTON KIT - BORE-IN 95cc 51.25mm piston, 10.5:1 compression $150.00 1992-CURRENT #00315N, 1979-1991 #00342

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Boring, rejetting. PISTON KIT - OVERSIZE FOR 95cc KIT 51.5mm piston, 10.5:1 compression $150.00 1992-CURRENT #00315NB, 1979-1991 #00342B

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Boring, rejetting. BORE & STROKE COMBINATION 121cc 53mm Bore, 9mm Stroke, 11:1 Compression. $645.00

1992-CURRENT #00260S-16037-14RA, 1979-1991 #00259S-16037-14RAINCLUDES: BORE: Piston, rings, pin, circlips, headgasket, basegasket, sleeve STROKE: Work done on your crank. Includes Rod Assembly, crank may require additional parts. REQUIRES: Boring, Re-sleeving, Case machining. Send crank for work, see pg 2.

CAMSHAFT - HARDWELD, NO CORE REQ’D - RACE GRIND $195.00 #12680N Lift .280” IN/ .275” EX. Best with 95cc and larger engines. Valve springs strongly recommended.

VALVE SPRINGS $50.00 #24001 These utilize your stock retainers and work well with most aftermarket cams.CLUTCH SPRINGS 1987-Current #16751 $25.00, 1979-1986 #16785 $21.00EXHAUST - 2001 & later Models THRUST CHAMBER - Spark Arrested $45.00 #17102 Works with stock spark arrestor. Choose Gold, Silver or Red. THRUST NOZZLE - Not Spark Arrested $45.00 #17102N Replaces the stock spark Arrestor unit. EXHAUST - 1985-2000 Models - POWROLL PERFORMANCE SYSTEM $250.00 #18294 Powroll header w/ 3” Supertrapp. Spark Arrested.

HONDA ATC, CT, CL, S 90, ALL YEARSPISTON KIT - BORE-IN 104cc $235.00 #00344 54mm Piston, 10.5:1 Compression.

INCLUDES: Piston, pin, rings, circlips, headgasket (specify round or notched gasket). REQUIRES: Boring, rejetting.STROKE - CT90 ONLY #16003 $275.00 8.4mm Stroke 124cc’s,11.5:1 Compression with 54mm Piston

REQUIRES: Send crank for work, see pg 2.

HONDA VINTAGE 100 & 125’s*PRODUCT FITMENT:

A = CB100, CL100, SL100: All Years (1 pc Head. 14mm Piston Pin standard)B= XL100: 1974-1975 (1 pc Head. 14mm Piston Pin standard)C= CB125, CL125, SL125, XL125: 1969-1975 (One-Piece Head, 15mm Piston Pin standard)D = TL125: All Years (One-Piece Head, 15mm Piston Pin standard)E = CB125, XL125: 1975 & Later (Two-Piece Head. not AHRMA Classic legal)F = CB 125: 1976-1979 (Two-Piece Head, not AHRMA Classic legal)ALL = Item will fit all of the above

FITS* A,B: PISTON KIT FOR 100 - BORE-IN 118cc - 55mm Piston High Compression 13.5:1 #00361 $290.00Low Compression 9.5:1 #00361LC $290.00

INCLUDES: Sle 10+ Octane.FITS* = C, D, E, F (A, B - ONLY with Stroker kit listed below): PISTON KIT - RE-SLEEVE 145cc - 61mm PistonHigh Compression 11:1 #00019HC $330.00Low Compression 9.5:1 #00019F $330.00

INCLUDES: Sleeve, forged piston, 15mm pin, rings, circlips, headgasket. REQUIRES: Re-sleeving cylinder. Case machining w/ 100 cases, rejetting, 11:1 use 100+ octane fuel.

FITS* = C, D, E, F (A, B - ONLY with 145cc kit above, or stock 125 piston): STROKE +9.5mm with Heavy Duty Rod Assembly (15mm Piston Pin) 59.4mm Total Stroke. 100 Crank #16010RA $425.00 125 Crank #16005RA $425.00

INCLUDES: New rod (15mm piston pin size), crank pin and big-end bearing. Stroke work done on your stock crank assembly. REQ: Send crank for work, see pg 2.FITS* = A, B: RACE CAM GRIND FOR 100 - $140.00 #12769 Lift .239” IN/ .237” EX.

Hardweld, done on your good core. Valve spring kit strongly recommended. FITS* = C,D: RACE CAM GRIND FOR 125 - $140.00 #12614 Lift .320” IN/ EX.

Hardweld, done on your good core. Valve spring kit strongly recommended. FITS* = ALL (also XL/XR 200 (two valve), and ATC 200x): CAM SPROCKET - ADJUSTABLE #23205 $50.00

Re-degree any cam, index holes will give up to approximately 6 degrees advance and 6 degrees retard. FITS* = A, B, C, D: VALVE SPRINGS $50.00 #24040 These utilize your stock retainers and work well with most aftermarket cams.FITS* = A, C, D: CLUTCH SPRINGS #16775 $29.00FITS* = A, B, C, D, E, F: JET KIT #21352 $35.00

Also fits all Honda carburetors using main jets with the starting digits of 99114-246-****. Kit includes: Jetting instructions, one each: 85, 95, 100, 105, 110, 115, 120, 125, 130, 135 Genuine Keihin Main Jets.

PG 6HONDA MOTORCYCLES HONDA CRF100 - XR100 - ALL YEARSPISTON KIT - BORE-IN 110CC $call 55mm Piston, 11:1 or 13:1 Compression1992 - Current Models #00332F1979 - 1991 Models #00333F

INCLUDES: Forged piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Boring, rejetting, 13:1 = 102+ octane.PISTON KIT - RE-SLEEVE (Case Mach Req’d) 120CC $215.00 - 58mm Piston, 11.5:1 Compression1992 - Current Models #00309F1979-1991 Models #00307F

INCLPISTON KIT - RE-SLEEVE (Case Mach Req’d) 120cc ~SPECIAL~ HIGHER COMP $285.00 - 58mm Piston, 12:1 Compression1992 - Current Models #00309 - Special Order1979 - 1991 Models #00307 - Special Order

INCLUDSTROKE - 6.0mm $260.00 #16041 Total displacement is 135cc when used with our 120cc Bore Kit.

Price includes work only, parts (if needed) are extra. REQUIRES: Send crank for work, see pg 2. 58mm piston kits must use Powroll sleeve.STROKE - 9.0mm STROKE $275.00 #16090 Total displacement is 150cc when used with our 120cc Bore Kit.

Price includes work only, parts (if needed) are extra. REQUIRES: Send crank for work, see pg 2. 58mm piston kits should use Powroll sleeve.CAMSHAFT - HARDWELD, NO CORE REQ’D - RACE GRIND $195.00 #12680N Lift .280” IN/ .275” EX.

Hardweld, no core required. Valve spring kit strongly recommended.VALVE SPRINGS $50.00 #24001 These utilize your stock retainers and work well with most aftermarket cams.CLUTCH SPRINGS 1987-Current #16751 $25.00 1979-1986 #16785 $21.00EXHAUST - 2001 & later Models THRUST CHAMBER - Spark Arrested $45.00 #17102 Works with stock spark arrestor. Choose Gold, Silver or Red. THRUST NOZZLE - Not Spark Arrested $45.00 #17102N Replaces the stock spark Arrestor unit. EXHAUST - 1985-2000 Models - POWROLL PERFORMANCE SYSTEM $250.00 #18294 Powroll header w/ 3” Supertrapp. Spark Arrested.

HONDA CRF150F 2006 & LATEREXHAUST - THRUST CHAMBER - Spark Arrested $55.00 #17105 - Works with stock spark arrestor. Choose Gold, Silver or Red.

HONDA CRF150F 2002-2005PISTON KIT - STANDARD HI COMP $219.00 #00339 63.5mm Piston 12.5:1 Compression.

Uses stock rings, pin and gaskets. INCLUDES: Piston, circlips REQUIRES: Rejetting. Race Gas Mix 100 octane+CRF 150 OEM Parts Kit $65.00 #00339K INCLUDES: stock Honda rings, pin, headgasket and basegasket.

PISTON KIT - BORE-IN 170cc $230.00 #00336 66mm Piston, 11:1 Compression. INCLUDES: Piston, pin, rings, clips, headgasket and basegasket REQUIRES: Cylinder Boring, rejetting.

STROKE W/ TOUGH ROD ASSY 4.0mm $375.00 #16080RA 53.5mm total stroke. 170cc with stock piston, 190cc’s with 66mm pistonINCLUDES: New rod assy. Work done on your crank. REQ: See Pg 2 for info on shipping cranks. Modifications may be req’d if using other piston or cam brands.

STROKE W/ TOUGH ROD ASSY 9.5mm $425.00 #16079RA 59mm total stroke. 187cc with stock piston, 202cc with 66mm piston.INCLUDES: New rod assy. Work done on your crank. REQ: See Pg 2 for info on shipping cranks. Modifications may be req’d if using other piston or cam brands

CARB - 26mm MIKUNI $300.00 #20535INCLUDES: Pre-jetted carburetor with Billet flange and spigot. Throttle Cable. Mounting Hardware. Main jet assortment. Detailed installation instructions.

CAMSHAFT - HARDWELD - MID-TOP END GRIND $165.00 + Core Charge $75.00 Cam #12756 Core #22756GUses stock springs

EXHAUST - POWROLL OVERSIZE HEADER $100.00 #18351H

Use with stock unmodified muffler, with the Thrust Chamber for more power, and the Thrust Nozzle for the best horsepower. THRUST CHAMBER - Spark Arrested $55.00 #17105 Works with stock spark arrestor. Choose Gold, Silver or Red. THRUST NOZZLE - Not Spark Arrested $55.00 #17105N Replaces the stock spark Arrestor unit.

HONDA CB160 - TWIN - ALL YEARSPISTON KIT - BORE-IN 190cc $399.00 #00348 Special Order 53.9mm Piston, 12.75:1 Compression.

INCLUDES: Pis ed.

HONDA XR200 1982-1983 & 1986-2003 Also HONDA XR-XL 185 (all years) & ATC200X ‘83-85

PISTON KIT - BORE-IN 198cc STANDARD COMPRESSION $210.00 #00317 66mm Piston, 10.5:1 Compression. HIGH COMPRESSION $225.00 #00317HC 66mm Piston, 12:1 Compression.

INCLUDES: Piston, pin, rings, circlips, head gasket and base gasket REQUIRES: Boring, rejetting. High Comp = 105+ octane.STROKE 6.0mm $260.00 #16047 218cc w/ 66mm Bore.

INCLUDES: Work done on your crank. REQUIRES: Send crank for work, see pg 2. CAMSHAFT - BILLET W/ NEEDLE BEARING - TORQUE GRIND $280.00 #12701N Lift .365” IN/EX

Designed for stock or low compression (11:1 max) engines. Special design replaces the OEM small-end bushing with a more reliable needle bearing upgrade (fits in stock head with no machining required. REQUIRES: Valve Springs #24012T (see below).

CAMSHAFT - HARDWELD, NO CORE REQ’D - MID-TOP END GRIND $195.00 #12714N Lift .355” IN/EX. Req: #24012T Springs, 11:1+ Comp. CAMSHAFT - HARDWELD, NO CORE REQ’D - RACE GRIND $195.00 #12719N Lift .395” IN/EX. Req: #24012T Springs, 11:1+ Comp. VALVE SPRINGS WITH TITANIUM RETAINERS $100.00 #24012TCAM CHAIN - HIGH STRENGTH $30.00 #18526CAM SPROCKET - ADJUSTABLE #23205 $50.00 Re-degree any cam, index holes will give up to approximately 6 degrees advance and 6 degrees retard.

PG 7 HONDA MOTORCYCLES HONDA XR200 RFVC 1984-1985CRANK REBUILD $375.00 #25312RA

INCLUDES: Work done on your stock crank, new rod kit, disassembly, reassembly and alignment. REQUIRES: Send crank for work, see pg 2.

HONDA CRF230 - ALL YEARSPISTON KIT - BORE-IN 66mm $230.00 #00340 66mm Piston 10.5 - 12.3:1 Compression

INCLUDES: Piston, rings, pin, circlips, headgasket, basegasket.REQUIRES: Boring, Rejetting. Compression over 11:1 must run race gas mix. 12.3:1 Compression may cause starter issues.

CAMSHAFT - HARDWELD - MID-TOP END GRIND $165.00 + Core Charge $75.00 Cam #12756 Core #22756GUses stock springs

EXHAUST - POWROLL OVERSIZE HEADER $100.00 #18353H

Use with stock unmodified muffler, with the Thrust Chamber for more power, and the Thrust Nozzle for the best horsepower. THRUST CHAMBER - Spark Arrested $55.00 #17105 Works with stock spark arrestor. Choose Gold, Silver or Red. THRUST NOZZLE - Not Spark Arrested $55.00 #17105N Replaces the stock spark Arrestor unit.

HONDA XR250R 1996-2004PISTON KIT - BORE-IN 277cc $225.00 #00288 77mm Forged Piston, 10.5:1 Compression.

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Cylinder Boring, rejetting. STROKE 3.1mm $290.00 #16096 291cc with 77mm piston.

INCLUDES: Work done on your crank. See Pg 2 for details. RECOMMENDATIONS: Works best with Powroll pistons. Modifications may be required if using other piston or cam brands.

HONDA XR250 1986-1995 & HONDA XR250L 1988-LATERPISTON KIT - BORE-IN 277cc $225.00 #00288 77mm Forged Piston, 10.5:1 Compression.

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Cylinder Boring, rejetting.

HONDA XR250 1984-1985 & HONDA XL250 1984-1987PISTON KIT - BORE-IN 262cc $225.00 #00288 77mm Forged Piston, 10.5:1 Compression.

INCLUDES: Piston, pin, rings, circlips, headgasket. REQUIRES: Cylinder Boring, rejetting.

HONDA XL350 1974-1978PISTON KIT - BORE-IN 412cc $265.00 #00102V 86mm Forged piston, 11:1 compression.

INCLUDES: Piston, pin, rings, circlips, headgasket REQUIRES: Boring, rejetting, stock Honda basegasket. 100+ octane.STROKE W/ ROD ASSY 6.3mm $440.00 #16023RA 449cc’s with our 86mm bore kit.

INCLUDES: New Rod, pin, needle assembly. Work done on your crank. REQUIRES: Send crank for work, see pg 2. RECOMMENDATIONS: Modifications may be required if using other piston or cam brands.

CAM CHAIN $85.00 #18527 Stronger and lighter than the stock chain.

HONDA XR400R - ALL YEARSPISTON KIT - BORE-IN 415cc $230.00 #00308 87mm forged piston, 10.8:1 compression.

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Boring, rejetting.PISTON KIT - RE-SLEEVE 440cc $315.00 #00314HC 89mm Forged Piston, 11.2:1 Compression

INCLUDES: Sleeve, piston, pin, rings, circlips, headgasket, basegasket REQUIRES: Re-sleeving of your cylinder, rejettingPISTON KIT - OVERSIZE FOR 89mm KIT $225.00 #00314HC-B 89.5mm Forged Piston, 11.2:1 Compression

INCLUDES: PBORE & STROKE COMBO 440cc $522.00 #00302S-16094LR 87mm Bore, +4mm Stroke, 11:1 Compression.

INCLUDES: 87mm PISTON KIT - BORE-IN Piston Kit: Piston, pin, rings, circlips, headgasket, basegasket. 4.0mm Stroke. Work done on your crank.REQUIRES: Cylinder boring. Rejetting. Send crank for work, see pg 2.

VALVES - STAINLESS STEEL $55.00 Each - Special Order Purchase 2 Intake valves and 2 Exhaust valves for a complete set of 4.• Intake Valve #24514A - 1mm Oversize• Intake Valve #24514 - Standard Size • Exhaust Valve #24515 - Standard Size • Exhaust Valve #24515A - 1mm Oversize

www.powroll.com Detailed Descriptions Photos Tech Support Instructions

PG 8

HONDA TRX 90 - ALL YEARSPISTON KIT - STANDARD HI COMP $165.00 #00335 47mm Piston, 11:1 Compression.

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Check clearances before installation. 97+ Octane. PISTON KIT - BORE-IN 95CC $165.00 #00299 49.5mm piston, 9.5:1 compression.

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Boring, rejetting.PISTON KIT - OVERSIZE FOR 95cc KIT $165.00 #00299B 50mm piston, 9.5:1 compression.

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Boring.PISTON KIT - RE-SLEEVE (Case Mach Req’d) 111CC $279.00 #00345 53.5mm piston, 11:1 compression.

INCLUDES: Piston, pin, rings, circlips, head & base gasket, sleeve. REQUIRES: Re-sleeving, Boring, Case Machining, rejetting.PISTON KIT - OVERSIZE FOR 111cc KIT $185.00 #00345B 54mm piston, 11:1 compression.

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Boring of Powroll sleeve.STROKE W/ TOUGH ROD ASSY 4.5mm $375.00 #16095RA 104cc’s w/49.5mm Piston, 122cc w/53.5mm Piston. 54mm total stroke.

INCLUDES: New Rod, pin, needle assembly. Work done on your crank. REQUIRES: Send crank for work, see pg 2. RECOMMENDATIONS: Modifications may be required if using other piston/cam brands.

CAMSHAFT - HARDWELD - RACE GRIND $210.00 + Core Charge $100.00 Cam #12740 Core #22740GLift .239” IN / .243” EX Works with stock springs and retainers. REQUIRES: Core Exchange or Core Charge (see PG 2).

VENTED VALVE CAP $45.00 #18530 Choose Red, Gold or Silver.JET KIT - 2006 & LATER MODELS $19.00 #21351 INCLUDES: Needle shim, main jet sizes 92, 95 & 98. Jetting instructions.CLUTCH SPRINGS $25.00 #16781 CLUTCH SHOES - LIGHTENED $84.00 #16855EXHAUST - 2006 & LATER - POWROLL PERFORMANCE SYSTEM $260.00 #18354

Includes Powroll header, Supertrapp muffler, jet kit # 21351 w/ installation instructions.EXHAUST - 1993-2005 - POWROLL PERFORMANCE SYSTEM $250.00 #18333

Includes Powroll header and Tuneable spark arrestor, installation & jetting instructions. CAM CHAIN - HIGH STRENGTH $35.00 #18528

HONDA TRX 250EX - ALL YEARSPERFORMANCE KIT $345.00 #00327 70.5mm BORE, Stock STROKE, 10.8:1 COMPRESSION 229cc stock. 249cc with this kit.

KIT INCLUDES: 70.5mm forged piston kit: piston, rings, pin, circlips, headgasket, basegasket. High Ratio Intake Rocker. Valve Cover Gasket. Installation, tuning, and jetting instructions. REQUIRES: Boring, Rejetting

VENTED VALVE CAP $45.00 #18530 Installs in place of your exhaust valve cap. Choose Red, Gold or Silver

HONDA TRX 250X & TRX 300EXPISTON KIT - STANDARD HI COMP 74mm $139.00 #00359 Std bore 74mm Forged Piston, 11:1 Compression (11.5:1 w/ Stroke).

INCLUDES: Piston, pin, ring -mum, 100 octane recommended.

PISTON KIT - RE-SLEEVE 78mm $325.00 #00271 78mm Forged Piston, Choose 10.5:1, 11.5:1 or 13:1 Compression.313cc’s for the 300EX, 274cc’s for the 250X. INCLUDES: Sleeve, piston, pin, rings, circlips, headgasket. REQUIRES: Resleeving of your stock cylinder. Rejetting. RECOMMENDATIONS: Compression ratios 11:1 and higher requires fuel 110 octane or greater. 300EX starter may not work with compression ratios over 11.5:1.

PISTON KIT - RE-SLEEVE (Case Mach Req’d) 80mm $325.00 #00298 80mm Forged Piston, 10.5:1 Compression. 329cc’s for the 300EX, 288cc’s for the 250X. INCLUDES: Sleeve, piston, pin, rings, circlips, headgasket REQUIRES: Resleeving of your stock cylinder. Case machining to accept larger sleeve. Rejetting.

STROKE • 300EX 4mm (Total stroke 69.5mm) $290.00 #16054 Displacement: 74mm Piston = 299cc. 78mm Piston = 333cc. 80mm piston = 349.4cc

INCLUDES: Work done on your crank. Parts, if needed, will be extra. REQUIRES: Send crank for work, see pg 2. Works best with Powroll pistons. Mods may be required with other piston or cam brands.

STROKE • 250X 12.2mm (Total stroke 69.5mm) $315.00 #16053 Displacement: 74mm Piston = 299cc. 78mm Piston = 333cc. 80mm piston = 349.4cc

INCLUDES: Work done on your crank. Parts, if needed, will be extra. REQUIRES: Send crank for work, see pg 2. RECOMMENDATIONS: Works best with Powroll pistons. Mods may be required if using other piston or cam brands.

CAMSHAFT - HARDWELD - TORQUE GRIND $150.00+Core Charge $100.00 Cam #12741 Core #22733GLift .304” Intake, .304” Exhaust. REQUIRES: Core Exchange or Core Charge (see PG 2).

CAMSHAFT - HARDWELD - MID-TOP END GRIND $195.00+Core Charge $100.00 Cam #12733HW Core #22733GLift .336” Intake, .336” Exhaust. REQUIRES: Valve Springs #24029

HARDFACE STOCK ROCKERS $130.00/SET - Done on your stock rockers #23004 x 2 Send in your rockers, average turn-around 4 wks.VALVE SPRINGS WITH TITANIUM RETAINERS $130.00 #24029 INCLUDES: Inner and outer springs, titanium retainers, shims.CARB - 32mm MIKUNI ROUND SLIDE $280.00 #20526

Pre-jetted for our 352cc kit. INCLUDES: Pre-jetted carb, extra jets, twist throttle.

HONDA 250X - 350X CONVERSION KIT INSTALL A 350X ENGINE IN YOUR 250X OR 300EX CHASSIS

250X 350X CONVERSION KIT $675.00 #18328K SAVE $20! KIT INCLUDES: Engine Mount Spacers, Install Instructions, Wiring Inst. Complete EXHAUST - POWROLL PERFORMANCE system - oversize header, Meg, Supertrapp 4” Racing Muffler (Spark Arrested) REQUIRES: 350X Engine. 250X Chassis, Carb & wiring harness. 350X CDI Box.

OR - ORDER COMPONENTS SEPARATELY:CONVERSION INSTALLATION KIT $70.00 #18514 Motor mount spacers, installation instructions, wiring & tuning inst.CONVERSION EXHAUST SYSTEM $645.00 #18328 Powroll oversize header, Megaphone, Supertrapp 4” Racing Muffler (Spark Arrested).

HONDA ATC 70 & ATC 90 See page 4HONDA ATV’s

PG 9 HONDA ATV’s HONDA ATC 350XPISTON KIT - RE-SLEEVE 393cc $345.00 #00254 86mm Forged Piston, 10:1 - 13:1 Compression.

INCLUDES: Piston, pin, rings, circlips, headgasket, sleeve. REQUIRES: Resleeving, boring, rejetting RECOMMENDED: 11:1 or higher compression requires race gas 110 octane or greater

STROKE 6mm $290.00 #16069 430cc’s w/ 86mm Piston.INCLUDES: Work done on your crank. Parts, if needed, will cost extra. REQUIRES: Send crank for work, see pg 2. RECOMMENDED: Works best with Powroll pistons. Modifications may be required if using other piston or cam brands.

CAMSHAFT - HARDWELD, NO CORE REQ’D - MIDRANGE END GRIND $195.00 #12726N Lift .355” Intake, .360” Exhaust. REQUIRES: Valve Springs #24024. RECOMMENDED: New or Hardfaced rockers.

CAMSHAFT - HARDWELD, NO CORE REQ’D - RACE GRIND $195.00 #12725N Lift .360” Intake, .360” Exhaust REQUIRES: Valve Springs #24024. RECOMMENDED: New or Hardfaced rockers.

VALVE SPRINGS WITH TITANIUM RETAINERS $130.00 #24024HARDFACE STOCK ROCKERS $130.00/SET - Done on your stock rockers #23004 x 2 Send in your rockers, average turn-around 4 wks.

TRX 350 FOREMANPISTON KIT - RE-SLEEVE 393cc $345.00 #00254 86mm Forged Piston, 10:1 Compression.

INCLUDES: Sleeve, piston, pin, rings, circlips, headgasket. REQUIRES: Resleeving, boring, rejetting

HONDA TRX 400EXPISTON KIT - BORE-IN 415cc $230.00 #00308 87mm forged piston, 10.8:1 compression.

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket REQUIRES: Boring, rejetting.PISTON KIT - RE-SLEEVE 440cc $315.00 #00314HC 89mm Forged Piston, 11.2:1 Compression

INCLUDES: Sleeve, piston, pin, rings, circlips, headgasket, basegasket REQUIRES: Re-sleeving of your cylinder, rejetting.PISTON KIT - OVERSIZE FOR 89mm KIT $225.00 #00314HC-B 89.5mm Forged Piston, 11.2:1 Compression

Oversize for our 440cc bore kit listed above. INCLUDES: Piston, pin, rings, circlips, headgasket, basegasketREQUIRES: Must use oversize sleeve provided with any aftermarket 440cc kit.

PISTON KIT - BORE-IN for 4mm Stroke $272.00 #00302S 87mm forged piston, 11:1 compression.Made to work with any 4mm stroker that has a standard length rod - this piston is 2mm shorter from pin to top to compensate.INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket REQUIRES: +4mm stroke w/std. length rod.

BORE & STROKE COMBINATION - 440cc $522.00 #00302S-16099 87mm Bore, +4.0mm Stroke, 11:1 Comp.INCLUDES: 87mm PISTON KIT - BORE-IN Piston Kit: Piston, pin, rings, circlips, headgasket, basegasket. 4.0mm Stroke. Work done on your crank. REQUIRES: Boring. Rejetting. Send crank for work, see pg 2.

STROKE W/ TOUGH ROD +4.0mm $545.00 #16092R 425cc w/ stock piston, 440cc w/ 87mm piston, 460cc w/ 89mm pistonINCLUDES: Stroke work done on your crank assembly. New Powroll Tough Rod. PISTON KIT IS NOT INCLUDED. REQUIRES: Send in your crank for modifica-tion, read Pg. 2 for details.

CAMSHAFT - HARDWELD - MID-TOP END GRIND $195.00 #12745 + Core Charge $170.00 #22745G Lift .350” In and .345” Ex Ha

HARDFACED ROCKERS $280.00 (set) #23001 + CORE CHARGE $140.00 #23001GHighly recommend with any aftermarket camshaft. REQUIRES: Core Exchange or Core Charge (see PG 2).

VALVE SPRINGS $120.00 #24035INCLUDES: Stronger inner and outer springs. Titanium Retainers.

VALVES - STAINLESS STEEL $55.00 Each - SPECIAL ORDER Purchase 2 Intake Valves and 2 Exhaust Valves for a complete set of 4 • INTAKE - STOCK SIZE #24514 • INTAKE - 1MM OVERSIZE #24514A • EXHAUST - STOCK SIZE #24515 • EXHAUST - 1MM OVERSIZE #24515ACARB - 39mm KEIHIN FCR - SPECIAL POWROLL SETUP $600.00 #20530

INCLUDES: Prejetted Keihin 49mm Carb -tion & jetting instruction booklet. JETTED FOR: Racing and dune engines 415cc and larger. Trail engines 440cc and larger.

CLUTCH SPRINGS $21.00 #16780 Recommended for all performance applicationsPERFORMANCE TIP - An unmodified XR250 CDI box will work as a ‘performance’ CDI and give you about 800 more rpm on top, plus a faster ignition curve (some engines do experience starting issues with this modification). Purchase it from your Honda dealer and save money. Order: Honda Part #30410-KCE-671.

HONDA TRX450R 2004-2005STROKE + PISTON MODS - +2.6mm Stroke $400.00 #15903-25409 468cc with Standard 94mm Piston, 488cc with 96mm Piston

Works with the following pistons:• Stock Honda 94mm Piston = 468cc (Premium Pump fuel OK)• Wiseco 96mm #4848M09600 = 488cc 11.2:1 Compression (Race Gas mix 100 octane or better)• Wiseco 96mm #4849M09600 = 488cc 12.5:1 Compression (Race Gas mix 108 octane or better)INCLUDES: Work done on your crank and piston. REQUIRES: Send in your crank assembly and new Honda or Wiseco piston for modification, see pg 2. REC-OMMENDATIONS: For engines wiat no additional charge).

CAMSHAFT - BILLET - RACE GRIND $325.00 #12762 - SPECIAL ORDER Designed specifically to produce the best power with our combos shown above.

PG 10KAWASAKI & SUZUKI MOTORCYCLESKAWASAKI - SUZUKI KLX-DRZ 110PISTON KIT - BORE-IN 135cc #00328 $190.00 58mm Piston, 12:1 Compression.

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Boring, rejetting RECOMMENDATIONS: Bikes ridden at or near sea level may run better with a mix of 1/2 race gas and 1/2 premium pump fuel.

BORE-STROKE COMBO - 165cc WITH POWROLL ‘TOUGH ROD’ #00352-15904-14RA $650.00 61mm Piston, 5.9mm Stroke, 12.5:1 CR.INCLUDES: 61mm PISTON KIT - RE-SLEEVE (Case Mach Req’d): Forged piston, rings, pin, clips, sleeve, headgasket, basegasket. 5.9mm Stroke w/ Tough Rod Assy: Done on your 2003 & later crank assembly. New Powroll rod and crank bearing (uses stock crank pin). REQUIRES: Resleeving, case machining, boring, rejett

BORE-STROKE COMBO - 150cc WITH POWROLL ‘TOUGH ROD’ #00349-14-15904-14RA $500.00 58mm Piston, 5.9mm Stroke, 12.5:1 CR.INCLUDES: 58mm PISTON KIT - BORE-IN: Forged piston, rings, pin, clips, headgasket, basegasket. 5.9mm Stroke w/ Tough Rod Assy: Done on your 2003 & later crank assy. Powroll Tough Rod and brg (uses stock crank pin). REQUIRES: Boring, rejetting, Send crank for work, see pg 2.

CAMSHAFT - HARDWELD - RACE GRIND - $195.00 on your good core (12754), or $295.00 outright (#12754-22754G)Uses stock springs and rockers. REQUIRES: For #12754 send good core for work.

CARB - 22mm KEIHIN - $280.00 #20539INCLUDES: Pre-jetted carburetor with Billet flange and spigot. Throttle Cable. Mounting Hardware. Main jet assortment. Detailed installation instructions. Uses stock throttle/cable, intake and airbox.

CLUTCH - TOUGH CLUTCH KIT #16700 $9.25 More grip and less slip for stock and modified engines. INCLUDES: 6 springs, 2 bolts.EXHAUST - POWROLL PERFORMANCE SYSTEM $250.00 #18346

INCLUDES: Powroll oversize header, Supertrapp 3” Muffler, mounting hardware. REQUIRES: Rejetting.

KAWASAKI KLX125 - SUZUKI DRZ 125PISTON KIT - BORE-IN 143cc $275.00 #00331F 61mm Piston, 12.5:1 Compression.

INCLUDES: F .PISTON KIT - BORE-IN LO COMP. 143cc $160.00 #00331S 61mm Piston, 11:1 Compression.

Used alone, it will give the engine a small (10%) boost in torque and midrange power. For real performance gains, we strongly recommend kit #00331F, or the 170cc bore/stroke combo. INCLUDES: Forged piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Boring. Rejetting.

BORE-STROKE COMBO - 170cc $420.00 #00331S-16086 61mm Piston. 9mm Stroke. 13:1 Comp. INCLUDES: PISTON KIT - BORE-IN Piston Kit: Piston, pin, rings, clips, headgasket, basegasket. +9mm Stroke: Work done on your good stock crank assembly. REQUIRES: Boring. Send crank for work, see pg 2. Rejetting (Carb kit #20536 highly recommended).

CAMSHAFT - BILLET - MIDRANGE GRIND $150.00 #12615B For use with stock ignition and any of our kits above.CAMSHAFT - BILLET - RACE GRIND $165.00 #12616B Designed for use with our ignition, will not perform well with stock ign.26mm MIKUNI ROUND SLIDE CARB $220.00 #20536 For engines 143cc’s or larger.

KIT INCLUDES: 26mm Round Slide Mikuni, pre-jetted for our 143cc kit. Extra main jets for larger and smaller engine configurations. Detailed installation instruc-tions and jetting specifications.

VENTED VALVE CAP $45.00 #18530 Choose Red, Blue, Gold or Silver EXHAUST - THRUST CHAMBER $45.00 #17103 Works with stock spark arrestor. Choose: Gold, Silver, Blue.IGNITION - POWROLL PVL SYSTEM $599.00 #18537

INCLUDES: ALL new ignition parts: Low-resistance spark plug cap, coil, ignition unit, stator, rotor and rotor puller. Step-by-step installation instructions are included - in English! NOTE: Engine should be bump-started when cold.

CLUTCH SPRINGS $29.00 #16784

SUZUKI DR125 1986-1996 See product descriptions for these parts abovePISTON KIT - BORE-IN 143cc HI COMP. $275.00 #00331F 61mm Piston, 12.5:1 Compression. PISTON KIT - BORE-IN 143cc LO COMP. $160.00 #00331S 61mm Piston, 11:1 Compression. BORE-STROKE COMBO - 170cc $420.00 #00331S-16086 61mm Piston. 9mm Stroke. 13:1 Comp. CAMSHAFT - BILLET - MIDRANGE GRIND $150.00 #12615B Billet cam, no core required.CAMSHAFT - BILLET - RACE GRIND $165.00 #12616B Works with stock ignition. Great with our 170cc kit. Billet cam, no core required.CLUTCH SPRINGS $29.00 #16784

KYMCO ATV’s KYMCO BLING - MONGOOSE 250 & 300, MXU 300 & 500 The Defuglifier! ALUMINUM SHINE FOR YOUR MXU

#18603 $100.00 Sale! $60.00 Complete kit includes: 2 Hydraulic Brake Reservoir caps, 1 Oil fill Cap, 1 Timing Access Cap. Replace the ugly and heavy stock covers with these great looking, lightweight and high quality items. Aluminum CNC machined covers in annodized Blue, Red, or Silver.

KYMCO MONGOOSE 90PISTON KIT - RE-SLEEVE 120cc $279.00 #00347 53.5mm piston, 12:1 compression.

INCLUDES: Piston, pin, rings, circlips, headgasket, sleeve. REQUIRES: Re-sleeving, Boring, rejetting.PISTON KIT - OVERSIZE FOR 120cc KIT $185.00 #00347B 54mm Piston, 12:1 Compression.

INCLUDES: Piston, pin, rings, teflon pin retainers, headgasket. REQUIRES: Bores into the Powroll sleeve from kit #00346.PISTON KIT - RE-SLEEVE 124cc FOR USE WITH KYMCO PEOPLE 150 HEAD $335.00 #00365 55mm piston, 12.5:1 compression

INCLUDES: Piston, pin, rings, circlips, headgasket, sleeve. REQUIRES: Re-sleeving, Boring, rejetting.CAMSHAFT - HARDWELD - RACE GRIND $175.00 on your good core (#12761), or $255 outright (#12761-22761G)Uses stock springs and rockers. REQUIRES: For #12761 send good core for work. CAMSHAFT - HARDWELD - RACE GRIND FOR 150 HEAD $195.00 on your good core (#12733), or $275 outright (#12773-22773G)Uses stock 150 springs and rockers. REQUIRES: People 150 head, rockers, valves. For #12733 send good core for work.

PG 11

KYMCO MONGOOSE 250PISTON KIT - BORE-IN 265cc $250.00 #00343 74.5mm Forged Piston, 10.5:1 - 12.75:1 Compression.

INCLUDES: 1:1 requires race gas).CAMSHAFT - HARDWELD - MID-TOP END GRIND $175.00 on your good core (#12760), or $255 outright (#12760-22760G)

Uses stock springs and rockers. REQUIRES: Core Exchange or Core Charge (see PG 2).EXHAUST - SLIP-ON SUPERTRAPP IDS2 MUFFLER $291.00 #18352

This slip-on system features a spark-arrested Supertrapp IDS2 muffler.

KYMCO MONGOOSE 300PISTON KIT - BORE-IN 285cc $250.00 #00356 74.5mm Piston, 11:1 Compression. 2mm Oversize Forged Piston.

INCLUDES: Piston, pin, rings, circlips, headgasket. REQUIRES: Boring, Rejetting, Premium Pump Fuel. CAMSHAFT - HARDWELD - MID-TOP END GRIND $200.00 on your good core (#12767), or $280.00 outright (#12767-22767G)

Uses stock springs and rockers. REQUIRES: Core Exchange or Core Charge (see PG 2).

KYMCO MXU 500PISTON KIT - STANDARD HIGH COMPRESSION $290.00 #00363 92mm Piston, 11:1 Compression.

INCLUDES: Piston, pin, rings, circlips, headgasket. REQUIRES: Cleck clearance, Rejetting, 100+ Octane. CAMSHAFTS - HARDWELD - MID-TOP END GRIND $400.00 on your good cores (#12772), or $550.00 outright (#12772-22771GE/GI) Uses stock springs and rockers. REQUIRES: Core Exchange or Core Charge (see PG 2).CAMSHAFTS - HARDWELD - WOODS GRIND $400.00 on your good cores (#12771), or $550.00 outright (#12771-22771GE/GI)

Uses stock springs and rockers. REQUIRES: Core Exchange or Core Charge (see PG 2).

KYMCO ATV’s

YAMAHA MOTORCYCLES YAMAHA TT-R 50 FOR STOCK ENGINES111cc SUPER PRO KIT $1,822.00 #SP105 *SPECIAL ORDER

50mm BORE, 56.5mm STROKE, 11:1 COMPRESSION INCLUDES: • Powroll Super Pro Big Valve Head • Hardweld Camshaft • Keihin Carb Kit w/ extra jets, manifold, gasket, th ork: Includes Powroll Tough Rod, crank pin and needle assembly. REQUIRES: Send your crank to Powroll for modification, read PG 2 for details on shipping cranks to us.

EXHAUST - THRUST CHAMBER $45.00 #17103 Works with stock muffler. Choose Gold, Silver or Blue. FOR ENGINES WITH GYT-R KITS INSTALLEDPISTON KIT - STANDARD HI COMP 85cc $250.00 #00357 47mm Piston, 11.5:1 Compression. Standard GYTR Size.

INCLUDES: Piston, pin, rings, circlips, headgasket. REQUIRES: TTR90 or GYTR cylinder and head. Rejet. Premium pump fuel.STROKE 4.9mm $260.00 #16030 93cc’s with the GYT-R 47mm Piston

INCLUDES: Work done on yo amaha part # GYT-1P605-50-00) or equivalent (GYTR piston works with no modification, other pistons may require modification to fit).

CAMSHAFT - HARDWELD - MID-TOP END GRIND $195.00 on your good core (#12753), or $275.00 outright (#12753-22747G)Uses stock valve springs. REQUIRES: Core Exchange (GYT-R cam only, not stock TT-R50) or Core Charge, (see PG 2).

YAMAHA TT-R 90PISTON KIT - RE-SLEEVE 120cc $279.00 #00346 53.5mm piston, 11:1 compression.

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket, sleeve. REQUIRES: Re-sleeving, Boring, rejetting.PISTON KIT - OVERSIZE FOR 120cc $185.00 #00346B 54mm Piston, 11:1 Compression.

INCLUDESPISTON KIT - BORE-IN 101cc $165.00 #00324 49.5mm Piston, 11:1 Compression.

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Boring, rejetting. RECOMMENDATIONS: Sea Level use 100+ octane.PISTON KIT - OVERSIZE FOR 101cc $165.00 #00324B 50mm Piston, 11:1 Comp. .020” Oversize.

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Boring, rejetting.CAMSHAFT - HARDWELD - MID-TOP END GRIND $195.00 on your good core (#12753), or $275.00 outright (#12753-22747G)

YAMAHA TT-R 110BORE-STROKE COMBO 130cc $390.00 #00364-16026 54mm piston, +2.5mm Stroke, 13.5:1 Compression

INCLUDES: BORE-IN Piston Kit: Piston, pin, rings, clips, head/base gaskets. 56.5mm STROKE: Work done on good stock crank assy. REQUIRES: Boring. Send crank for work, see pg 2. Rejetting (GYTR Kit).

CAMSHAFT - HARDWELD - MID-TOP END GRIND $195.00 on your good core (#12753), or $275.00 outright (#12753-22747G)Uses stock valve springs. REQUIRES: 130cc Bore/Stroke Combo.

YAMAHA TT-R 125PISTON KIT - RE-SLEEVE 150cc $299.00 #00319F 58mm Forged Piston, 11.5:1 Compression.

INCLUDES . Rejetting.PISTON KIT - RE-SLEEVE (Case Mach Req’d) 160cc $325.00 #00337 61mm Piston, 13:1 Compression.

INCLUDES: Sle 10 octane +.STROKE +2.5mm $440.00 #16081 170cc’s with our 61mm piston kit. Stock stroke 54mm.

INCLUDES: Work done on you -structions included). RECOMMENDATIONS: Works best with Powroll pistons. Modifications may be required if using other piston or cams.

CAMSHAFT - HARDWELD - RACE GRIND $195.00 on your good core (12747), or $275.00 outright (12747-22747G) Lift .257” IN/.256” EX. Works with stock valve springs and retainers. REQUIRES: Core Exchange or Core Charge (see PG 2).

CLUTCH SPRINGS $29.00 #16782 Stainless steel for better strength and heat resistance.EXHAUST - THRUST CHAMBER $45.00 #17103 Works with stock spark arrestor. Choose Gold, Silver or Blue.

PG 12

YAMAHA YZF & WR 250 & 426YZF-WR 250 STROKE 2.0mm $400.00 #16089 260cc’s YZF-WR 426 STROKE 2.0mm $400.00 #16091 440cc’s

INCLUDES: Work done on your crank and piston. REQUIRES: Send crank and new stock piston for work, see pg 2.

YAMAHA TT-XT-SR 500STROKE 7.0mm Displacement with: Stock (87mm) Bore = 541cc, with 90mm = 579cc, with 92mm = 605cc.With Powroll Rod $325.00 • TT-XT #16027RA • SR #16033RASupply Your own Rod $295.00 • TT-XT #16027 • SR #16033

Choice of Powroll (standard Strength) rod, or send in Carillo Rod. Carrillo Order #YA-TT5>-05571N INCLUDES: New OEM Needles, pin, shims. Work done on your stock crank assembly. REQUIRES: Send in your crank (see pg 2) and a new Carrillo Rod. Windage tray modification. Piston may need skirt shortened.

YAMAHA MOTORCYCLES

YAMAHA ATV’S YAMAHA RAPTOR 250PISTON KIT - RE-SLEEVE 298cc $350.00 #00362

81mm Piston, Choose 11.6:1 or 13.5:1 Compression. INCLUDES: Pi

CAMSHAFT - HARDWELD - MID-TOP END GRIND $call + Core $call Cam #12770 Core #22770G Designed specifically to make the best power possible with our 298cc kit. REQUIRES: Valve spring kit. Core Exchange/Core Crg (see PG 2).

VALVE SPRINGS w/ CROMOLY RETAINERS $call #24041 For use with our cam shown above.

YAMAHA RAPTOR & WARRIOR 350 PISTON KIT - BORE-IN 365cc $265.00 #00305

85mm Piston, 10.5:1 CompressionINCLUDES: Piston, pin, rings, circlips, headgasket REQUIRES: Boring, rejetting.

BORE & STROKE COMBINATION 430cc $650.00 #00272F-16082LR 86mm Bore, +9.5mm Stroke, 11.5:1 CompressionINCLUDES: 86mm Forged Piston, pin, rings, circlips, headgasket, sleeve. Work done on your crank. REQUIRES: Send crank for work, see pg 2. Cylinder re-sleev-ing and bore. Case Machining and windage tray modification, instructions included. Rejetting.

PISTON - OVERSIZE FOR 430cc KIT • 86.5mm (+ .020”) #00272B $215.00 • 87mm (+ .040”) #00272D $215.00 INCLUDES: 11:1 compression cast Piston, pin, rings, circlips, headgasket. REQUIRES: Bores into Powroll 430cc kit sleeve.

CARB - 38mm MIKUNI ROUND SLIDE $400.00 #20528Pre-Jetted for engines 400cc or larger. INCLUDES: Throttle Assembly, K&N Filter. Will not work with stock airbox.

CAMSHAFT NOTE: Yamaha 350 cams are NOT interchangeable. Choose the correct year and model. CAMSHAFT - HARDWELD - TORQUE

• RAPTOR 350 2007 & LTR $150.00 #12763L - Done on your good core• RAPTOR 350 2004-2006 $150.00 #12763 - Done on your good core • WARRIOR $150.00 #12742 - Done on your good coreLift .390” Intake, .390” Exhaust. REQUIRES: Send in your good cam core for work, 3-6 week turn around (see PG 2).

CAMSHAFT - HARDWELD - MIDRANGE • RAPTOR 350 2007 & LTR $150.00 #12764L - Done on your good core• RAPTOR 350 2004-2006 $150.00 #12764 Done on your good core • WARRIOR $135.00 #12708 - Done on your good coreLift .430” Intake, .430” Exhaust REQUIRES: Valve Springs #24028T. Send in your cam for work, 4-6 week turn-around (see PG 2)

CAMSHAFT - RACE GRIND• RAPTOR 350 2007 & LTR $150.00 #12765L - Done on your good core• RAPTOR 350 2004-2006 $150.00 #12765 - Done on your good core• WARRIOR $150.00 #12734 - Done on your good coreLift .430” Intake, .430” Exhaust. REQUIRES: Valve Springs #24028T. Send in your cam for work, 4-6 week turn-around (see PG 2).

VALVE SPRINGS $110.00 #24028T INCLUDES: 2 Inner Springs, 2 Outer Springs, Titanium Retainers, Bottom Cups, Heavy Duty Keepers.VALVES - STAINLESS STEEL Valves are sold each. You will need to purchase 1 intake and 1 exhaust valve for a complete set.

• STANDARD INTAKE $55.00 #24520 • 1mm OVERSIZE INTAKE $55.00 #24520A • STANDARD EXHAUST $55.00 #24521

YAMAHA 350 ATV - WOLVERINE & BIG BEARPISTON KIT - BORE-IN 365cc $265.00 #00305 85mm Piston, 10.5:1 Compression.

INCLUDES: Piston, pin, rings, circlips, headgasket REQUIRES: Boring, rejettingWOLVERINE ONLY - CAMSHAFT - HARDWELD - MID-TOP END GRIND $135.00 Cam #12742 - Done on your good core

Lift .390” Intake, .390” Exh. Works well with our 365cc kit and stock size tires. Oversize tire kits should use stock cam. REQUIRES: Send in your cam for work - 4-6 week turn-around.

YAMAHA 450 ATV - YFZ 2004-2005STROKE 1.4mm $400.00 #15901 Make a true 450cc’s out of your YFZ

INCLUDES: Work done on your crank and piston. REQUIRES: Send in your crank assembly and new OEM piston for modification, see pg 2. . RECOMMENDA-TIONS: For engines with over 200 hours of use, we recommend replacing the rod assembly.

PG 13

www.powroll.com Detailed Descriptions Photos Tech Support Instructions

YAMAHA RHINO 660ccPISTON KIT - STANDARD HI COMP $290.00 #00323 100mm Piston, 11:1 Compression.

INCLUDES: Piston, pin, ri .PISTON KIT - OVERSIZE FOR Std. Hi Comp $290.00 #00323B 100.5mm, 11:1 Compression

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket. REQUIRES: Boring. Must run race fuel, 108 octane or greater.BORE & STROKE COMBINATION 730cc $585.00 #00353-16097LR 102mm BORE, +5mm STROKE, 11:1 Comp

Bore Kit and Stroke Work will not work separately. INCLUDES: 102mm Piston Kit: Piston, pin, rings, circlips, headgasket, basegasket. 5.0mm Stroke: RE-QUIRES: Cylinder bore, windage tray modification. Installation instructions are included. Send crank for work, see pg 2.

YAMAHA ATV - RAPTOR 660ccPERFORMANCE PACKAGE - 770cc PREMIUM KIT 105mm BORE, +5mm STROKE, 12:1 COMPRESSION

BIG NOTE: This kit requires EXTENSIVE machining and is designed for racing, not casual riding.ORDER: BORE KIT #00326. STROKER #16088. CAMSHAFT #12752. CAM CORE #22749G . VALVE SPRINGS #24039. STAINLESS STEEL VALVE SET - 3 1MM O/S INTAKE #24524A, 2 STOCK SIZE EX #24525. POWROLL FCR CARB KIT #20533. CLUTCH SPRINGS #16783REQUIREMENTS: Cylinder re-sleeving, Case machining, Send in your crank for modification. See Pg 2 for details., Cam Core Exchange or Core Charge (see PG 2)., Must run race gas 112 octane or greater, Gearing. Install 1 tooth larger front sprocket and 3 teeth smaller rear sprocket, Frequent rebuilds will most likely be required with this kit RECOMMENDATIONS: Powroll recommends a tachometer or shift light set at 6800 rpm. Power is produced below this point, and over-rev will only cause premature engine failure.

PISTON KIT - STANDARD HI COMP $290.00 #00323 100mm Piston, 11:1 CompressionINCLUDES: Piston, pin, ri .

PISTON KIT - OVERSIZE FOR Std. Hi Comp $290.00 #00323B 100.5mm, 11:1 CompressionINCLUDES: Piston, pin, ri .

BORE & STROKE COMBINATION 730cc $630.00 #00353-16088LR 102mm BORE, +5mm STROKE, 11:1 COMP. INCLUDES: 102mm Piston Kit: Piston, pin, rings, circlips, headgasket, basegasket. 5.0mm Stroke: Work done on your crank.REQUIRES: Cylinder bore, windage tray modification. Installation instructions are included. Send in your crank for stroke modification. See Pg 2 for details. Bore Kit and Stroke Work will not work separately.

BORE & STROKE COMBINATION 770cc $795.00 #00326-16088LR 105mm BORE, +5mm STROKE, 12:1 COMP. INCLUDES: 105mm Piston Kit: Piston, pin, rings, circlips, headgasket, basegasket, sleeve. 5.0mm Stroke: Work done on your crank.REQUIRES: Cylinder re-sleeving, bore, case machining and windage tray modification. Installation instructions are included. 39mm FCR Carb Kit, Race Cam, Clutch Springs shown below. These are minimums to make this kit run. Race Gas 112 Octane. Send in your crank for stroke modification, see page 2 for info. Bore Kit and Stroke will not work separately.

CAMSHAFTS - HARDWELD - Done on your good core∙ MID-TOP END GRIND #12752 $180.00

Lift .340”IN, .255” EX. Duration 242° IN, 245° EX @.050” Requires: Send in good core, turn around 4-5 weeks.∙ RACE GRIND FOR 730cc+ ENGINES #12758 $190.00

REQUIRES: Valve Springs #24039. Hardfaced Rockers. Send in good core, turn around 4-5 weeks.∙ NOS/ALCOHOL GRIND FOR 770 ENGINES #12759SO $200.00

REQUIRES: Valve Spgs #24039. Hardfaced Rockers. Send in good core, turn around 4-5 weeks.HARDFACED ROCKERS - SPECIAL ORDER $280.00 (Set) #23003 Done on your good cores

Strongly recommend with aggressive high-lift cam grinds. REQUIRES: Send in your rockers, aprox. turn-around 4-6 weeks.VALVE SPRINGS w/ TITANIUM RETAINERS $175.00 #24039

Recommended only with our 770cc kit, Race or NOS grind cam, and oversize valves.STAINLESS STEEL VALVES $55.00 each (Special Order) Purchase 3 Intake valves and 2 Exhaust valves for a complete set of 5.

• INTAKE - 1MM O/S #24524A • EXHAUST - STOCK SIZE #2452539mm FCR CARB SET $999.00 #20533 (Special Order) RECOMMENDED FOR 770cc AND LARGER ENGINES

INCLUDES: Two Keihin 39mm FCR Carburetors. Manifold, Airboot adaptors and o-rings (to work with stock airbox). Cable adaptor to work with stock throttle assem-bly. Complete installation and tuning instruction booklet. Pre-jetted for our 770cc kit.

YAMAHA ATV & SIDE X SIDE

POWROLL LOGO TEE $callSTICKER KIT $ 7.95 #DECALKIT Free Shipping!TITANIUM KEYCHAIN BAG-MINIKEY $9.95TWO STROKE STROKER CRANKS• HONDA TRX 250R 2mm #15801 $250.00• HONDA TRX 250R 4mm #15802 $250.00• HONDA CR 250R 2mm #15803 $250.00• HONDA CR 250R 4mm #15804 $250.00

We stroke your stock crank assembly and re-install the tins. Rod length is not changed, so a spacer plate or other modifications will be required. Send us your crank (see instructions on PG 2) and a new rod assembly.

POWROLL OIL• POWROLL 40w RACING OIL • QUART #18513 $9.00 • CASE (12 Quarts) #18513C $95.00• POWROLL 20w50 OIL • QUART #18512 $9.00 • CASE (12 Quarts) #18512C $95.00

OTHER PRODUCTS