Description
The BOYESEN Radiator Valve optimizes intake charge distribution across your YZ125’s cylinder, delivering sharper throttle response and measurable horsepower gains throughout the entire RPM range. By maintaining consistent flow velocity through the valve and redirecting the intake charge evenly to all ports, this reed valve eliminates dead spots and maximizes combustion efficiency. A bolt-on upgrade that transforms your two-stroke’s mid-range punch and top-end aggression without requiring fabrication work.
- Fits: YZ125 ’05-’20
- Dual-stage reed design
- Patented Boyesen reed cage
- One-piece cast aluminum
- Bolt-on installation
- Order one set per cylinder
- Improves throttle response
- Increases torque output
- Even port distribution
- MPN: RAD-33J
