Description
A worn or damaged piston directly kills your PW80’s power delivery and reliability. The Wiseco 649M04750 restores full combustion efficiency and throttle response with forged aluminum construction engineered to OEM specs, ensuring your 2-stroke runs strong through years of aggressive riding. This complete kit arrives with rings, wrist pin, and circlips—no secondary sourcing required.
- Fitment: Yamaha PW80 (1991-2006), BW80 (1986-1988, 1990)
- Bore Diameter: 47.50mm
- Material: Forged aluminum alloy
- Piston Rings: Included
- Wrist Pin: Included
- Circlips: Included
- Installation: Bolt-on replacement
- Heat Resistance: 2-stroke rated
- MPN: 649M04750









