Description
If you’re running a classic Yamaha single-cylinder and want to unlock better combustion efficiency without sacrificing reliability, the Wiseco 4764M08800 delivers the precision engineering that separates a strong rebuild from a mediocre one. The 9:1 compression ratio and CNC-machined tolerances mean sharper throttle response and consistent performance across the RPM band. This is a complete kit—rings, pins, and circlips included—so you get everything needed for a proper top-end refresh.
- 88.00 mm bore diameter
- 9.0:1 compression ratio
- High-silicon aluminum alloy
- CNC-machined construction
- Includes piston rings
- Includes wrist pins
- Includes circlips
- Yamaha XT500 (1976–1981)
- Yamaha TT500 (1976–1981)
- Yamaha SR500 (1978–1981)
- Bolt-on installation
