Description
Features
- Maintain flow velocity through the valve and redirect intake charge for more even distribution to intake ports
- Made of one-piece aluminum castings and bolts in easily; no modifications necessary
- Provide quicker, sharper throttle response and more horsepower throughout rpm range
- Specially-designed reed cage holds Boyesen's patented dual-stage reeds
- Boyesen's hot RAD valve provides plenty of torque
| Position | Notes | |||
|---|---|---|---|---|
| 1989-1994 | Yamaha | YZ250 | - | - |
