Description
The stock reed valve in your YZ85 is your engine’s gatekeeper—and it’s holding back performance. Boyesen’s dual-stage reed design has been proven in laboratory flow analysis to outperform OEM reeds across the entire operating pressure range, delivering sharper throttle response from cold start through max RPM. If you’re serious about extracting every bit of power from your 85cc machine, this is where gains begin.
Technical Specifications:
- Dual-stage reed design
- CNC-engineered geometry
- Optimized flow velocity
- Enhanced startup performance
- Improved mid-range acceleration
- Fits YZ85 2002–2016
- Bolt-on installation
- OEM-spec fitment
- MPN: 6105
