Power reeds use a patented dual stage fiberglass design for more air flow, more air velocity and more power
The top reed is lightweight and resilient for crisp throttle response at partial throttle or low RPMs; the stiffer, bottom reed is ported to provide maximum flow and horsepower at higher RPMs
Longer overall life: Boyesen power reeds outlast all other aftermarket reed petals
Minor change gives major horsepower improvements and fuel economy
Fit type: Vehicle Specific
Description
Boyesen Power Reeds use a patented dual-stage fiberglass design for more airflow, more air velocity and more overall power. This item fits the following applications: 1992-1993 Yamaha WR500, 1984-1990 Yamaha YZ490, 1984-1988 Yamaha YZ250.