Description
A worn or damaged piston directly compromises combustion efficiency, throttle response, and engine reliability—especially in high-demand 2-stroke applications. The Wiseco Piston Kit 605M06900 restores your YZ250’s performance with forged aluminum construction and precision engineering, delivering the power and consistency you need for consistent lap times and trail performance. This complete kit includes rings, wrist pin, and circlips, so you get everything required for a straightforward installation.
- Forged Aluminum Construction
Lightweight, durable, high-strength material - Bore Diameter
69.00 mm precision-engineered - 2-Stroke Engine Application
Optimized combustion design - Complete Kit Contents
Piston, rings, wrist pin, circlips - Vehicle Fitment
Yamaha YZ250, WR250 (1988–1991) - Installation Type
Requires engine disassembly - OEM Part Number
605M06900 - Performance Benefits
Improved throttle response, combustion efficiency
