Fits: Yamaha 800 Power Valve Motor (All).

2 Cylinder / 2-Stroke Motor.

Standard Size Bore: 79.90mm

Cylinder Resleeving Is Required For Use Of Oversize Pistons

Individual Piston Kit Includes; Piston, rings, wrist pin and circlips.

IMPORTANT NOTE: These pistons are recommended for recreational PWC engines and have not been tested in race applications. When installing any piston .5mm (.020) or larger on Yamaha Power Valve Motor you MUST file down power valves .015 thousands before reinstalling power valves. Failure to do so WILL result in SERIOUS DAMAGE to the pistons and motor!

 Fits The Following Models:

1998 Yamaha GP 800 Piston Kit
1999 Yamaha GP 800 Piston Kit
2000 Yamaha GP 800 Piston Kit
2000 Yamaha XL 800 Piston Kit
2001 Yamaha GP 800 Piston Kit
2001 Yamaha XL 800 Piston Kit
2002 Yamaha GP 800 Piston Kit
2002 Yamaha XLT 800 Piston Kit
2003 Yamaha GP 800 Piston Kit
2003 Yamaha XLT 800 Piston Kit
2004 Yamaha GP 800 Piston Kit
2004 Yamaha XLT 800 Piston Kit
2005 Yamaha GP 800 Piston Kit

NOTE: Generic image and may not depict your actual piston kit.