ALL PRODUCTS ALSO WORK FOR THE 1979 & LATER XL80

STOCK SPECIFICATIONS:    47.5mm BORE X 45mm STROKE    9.7:1 COMPRESSION

BORE KIT 95cc

51.25mm piston, 10.5:1 Compression

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

RECOMMENDATIONS: We recommend our Camshaft and one of our exhaust options with this kit for the best overall performance!

00342 H BORE KIT XR80 95CC -- $150.00

BORE KIT +.020" oversize for 95cc Kit

51.5mm piston, 10.5:1 compression

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

00342B H BORE KIT XR80 95CC + .020 -- $150.00

BORE & STROKE COMBO 121cc

53mm Bore, +9mm Stroke, 12:1 Compression

This 121cc bore/stroke combo and heavy-duty rod with larger piston pin makes great power without sacrificing reliability.

INCLUDES:

BORE: Piston, rings, pin, circlips, headgasket, basegasket, sleeve

STROKE: Rod, crank pin, needle assembly.  Work done on your crank.

REQUIRES: Cylinder re-sleeving and case machining, Boring, rejetting.  Send in your crank for modification.  Download our Stroker Booklet for details.

Note - this piston kit and stroker MUST be used together, as the larger piston pin will not work with the standard rod.

00260S-16037-14RA H BORE-STROKE 121CC 92> -- $645.00

00259S-16037-14RA H BORE-STROKE 121CC 79-91 -- $645.00

CAMSHAFT  -  RACE GRIND

HARDWELD CAM, NO CORE REQUIRED

Lift .280” IN/ .275” EX.

This camshaft is a great addition to any modified engine. We recommend the High Performance Valve Springs for more aggressive riders and larger displacement engines.

12680N H CAM 75-80-100 -- $195.00

VALVE SPRINGS

2 Inner and 2 outer springs.  These utilize your stock retainers and work well with most aftermarket cams.

24001 H VALVE SPRINGS 75-80-100 -- $50.00

CLUTCH SPRINGS

Recommended for bigger engines and larger riders!

1987 & Later Models -

16751 H CLUTCH SPGS 80-100 -- $25.00

1979-1986 Models -

16785 H CLUTCH SPRINGS XR75-80-100 EARLY -- $21.00

1985 through 2000 Models -

POWROLL PERFORMANCE EXHAUST

Our oversize header and 3” Supertrapp are designed specifically to bring out the best in this small engine without making it impossible for kids to ride.  Spark Arrested & Forestry Approved. 

No Powroll Exhaust available for 1981-1984 Models.

18294 H EXH SYS XR80-100 -- $250.00