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The Boyesen Part Number 630 is a dual-stage fiberglass replacement power reed set designed for specific vintage two-stroke dirt bikes and ATVs.
Vehicle Fitment
Kawasaki KX80: 1986–1987
Yamaha YZ80: 1987–1992
Yamaha Blaster 200 (YFS200): 1988–2006
Key Features
Dual-Stage Design: Uses a lightweight top reed for fast throttle response at low RPMs and a stiffer, ported bottom reed for maximum airflow and horsepower at high RPMs.
Material: Patented durable fiberglass composite engineered to outlast standard stock reed petals.
Performance: Improves intake velocity, overall power across the powerband, and fuel efficiency.
Vehicle Fitment
Kawasaki KX80: 1986–1987
Yamaha YZ80: 1987–1992
Yamaha Blaster 200 (YFS200): 1988–2006
Key Features
Dual-Stage Design: Uses a lightweight top reed for fast throttle response at low RPMs and a stiffer, ported bottom reed for maximum airflow and horsepower at high RPMs.
Material: Patented durable fiberglass composite engineered to outlast standard stock reed petals.
Performance: Improves intake velocity, overall power across the powerband, and fuel efficiency.
