Description
A worn or damaged piston directly compromises your YZ80’s compression, throttle response, and overall engine reliability. The Wiseco 569M04900 restores lost performance and durability with forged high-silicon aluminum engineered to handle the demands of both competition and trail riding. This complete kit includes rings, wrist pin, and circlips—everything needed for a straightforward installation.
Why This Piston Matters: Wiseco’s race-proven design and USA manufacturing ensure precision fitment and consistent power delivery. You’ll notice sharper acceleration, improved combustion efficiency, and an engine that runs cleaner and longer between rebuilds.
- Forged high-silicon aluminum alloy
- 49.00 mm bore diameter
- +1.00 mm overbore sizing
- Includes premium piston rings
- Wrist pin and circlips included
- Fits Yamaha YZ80 (1988–1992)
- 2-stroke engine application
- Lightweight construction
- Enhanced combustion efficiency
- Improved throttle response
- Made in the USA
- Bolt-on installation
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