Description
If you’re rebuilding the top-end on your YFM80 Badger, you need a piston kit engineered for the demands of 2-cycle performance. Wiseco’s forged design handles extreme temperatures and combustion pressures without compromise, giving you the reliability to focus on riding rather than worrying about failure. This complete kit eliminates the guesswork—everything you need for a proper rebuild is included and precision-matched for your application.
- Fits: Yamaha YFM80 Badger (1985-2001)
- Bore diameter: 48mm
- Forged high-silicone construction
- Reduced thermal expansion
- Includes forged pistons
- High-performance compression rings
- Wrist pins included
- Circlips included
- Top-end gasket kit included
- Precision-manufactured tolerances
- Wiseco rings only (not interchangeable)
- 2-cycle engine application
- Complete top-end rebuild solution









