Description
Each Boyesen Power Reed system is unique – tailor made to your machine’s specific model, year and displacement.
Boyesen’s patented dual-stage design incorporates a specially shaped top
reed and a ported bottom reed. 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. More valves equals more power by creating:
More Air Flow
The dual-stage design allows you to
replace your stock reed stop with a Rev-Plate which permits the reeds to
open freely and function efficiently.
More Air Velocity
The multi-port feature of the
bottom reed creates more channels for the charge, delivering increased
velocity to the intake ports.
More Overall Power
Dual-stage reeds work in unison
to perform efficiently throughout the entire powerband. The difference
in stiffness between the top reed and the bottom reed allow the reeds to
respond quickly and accurately to changes in engine pressure. This
translates into quicker acceleration, crisper throttle response and
increased horsepower throughout the powerband.
| 1986 | Honda | CR80R |
| 1982 – 1988 | Kawasaki | KDX 80 |
| 1966 – 2001 | Kawasaki | KE 175 |
| 1979 – 1985 | Kawasaki | KX 80 |
| 1974 – 1983 | Yamaha | DT 100 |
| 1974 – 1976 | Yamaha | DT 125 |
| 1978 – 1981 | Yamaha | DT 125 |
| 1987 | Yamaha | DT 125 |
| 1974 – 1976 | Yamaha | DT 175 |
| 1978 – 1981 | Yamaha | DT 175 |
| 1974 – 1975 | Yamaha | MX 100 |
| 1979 – 1983 | Yamaha | MX 100 |
| 1974 – 1975 | Yamaha | MX 175 |
| 1979 – 1981 | Yamaha | MX 175 |
| 1989 | Yamaha | RT 100 |
| 1990 – 1993 | Yamaha | RT 180 |
| 1995 – 1997 | Yamaha | RT 180 |
| 1983 – 1987 | Yamaha | YT 125 Tri-Moto |
| 1983 | Yamaha | YT 175 Tri-Moto |
| 1974 | Yamaha | YZ 125 |
| 1981 – 1984 | Yamaha | YZ 60 |
| 1975 – 1979 | Yamaha | YZ 80 |
Free shipping is in the U.S only.
WE ARE DROPPING USPS & NOW SHIPPING WITH FEDEX OR UPS, UNFORTUNATLY THIS RAISED OUR PRICE BUT NOW YOU SHOULD ACTUALY GET YOUR PART.





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