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BOYESEN reed valves kit are composed of a single aluminum body, machined with the latest generation CNC machinery.
The monobloc structure allows to obtain a much more homogeneous flow in the aspiration stage, which is then directed much more directly into the combustion chamber. The aluminum body also keeps the incoming mixture fresh.
These features, together with the Boyesen Pro Series reeds optimized specifically for each engine, guarantee improvements over the entire delivery curve and lightning-fast throttle response.
The reed valves kit are supplied complete with everything necessary for installation and it is not necessary to make any modifications to the engine.
Boyesen reed valves kit are developed in collaboration with the best teams in the world such as Yamaha Factory, Pro Circuit, Kawasaki Factory Europe, KTM Factory and some of the best riders ever such as Jeremy McGrath.
The monobloc structure allows to obtain a much more homogeneous flow in the aspiration stage, which is then directed much more directly into the combustion chamber. The aluminum body also keeps the incoming mixture fresh.
These features, together with the Boyesen Pro Series reeds optimized specifically for each engine, guarantee improvements over the entire delivery curve and lightning-fast throttle response.
The reed valves kit are supplied complete with everything necessary for installation and it is not necessary to make any modifications to the engine.
Boyesen reed valves kit are developed in collaboration with the best teams in the world such as Yamaha Factory, Pro Circuit, Kawasaki Factory Europe, KTM Factory and some of the best riders ever such as Jeremy McGrath.
- Compatible model years
- Kawasaki KX 500 1987
- Kawasaki KX 500 1988
- Kawasaki KX 500 1989
- Kawasaki KX 500 1990
- Kawasaki KX 500 1991
- Kawasaki KX 500 1992
- Kawasaki KX 500 1993
- Kawasaki KX 500 1994
- Kawasaki KX 500 1995
- Kawasaki KX 500 1996
- Kawasaki KX 500 1997
- Kawasaki KX 500 1998
- Kawasaki KX 500 1999
- Kawasaki KX 500 2000
- Kawasaki KX 500 2001
- Kawasaki KX 500 2002
- Kawasaki KX 500 2003
- Kawasaki KX 500 2004
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