Description
If you’re rebuilding or refreshing your YFM225 Moto-4 engine, a quality piston kit is non-negotiable—it directly impacts compression, power delivery, and engine longevity. The Wiseco 71mm 1.00mm oversize piston delivers the precision fit and durability you need to run reliably at higher RPMs, whether you’re tackling technical trails or pushing harder on the track. Since it arrives as a complete kit with rings and circlips, you’re getting everything required for a straightforward installation without sourcing parts separately.
- High-silicon alloy construction
- 71mm, 1.00mm oversize
- Includes rings and circlips
- Yamaha YFM225 specific fitment
- 1986–1988 model years
- Precision CNC-engineered
- Improved throttle response
- Trail and racing capable
- Complete installation package
- MPN: 4312M07100
