BOYESEN Reed Valve for KAWASAKI KX 500 1987-2004

The BOYESEN BOYRAD-13 reed valve block is designed for KAWASAKI KX 500 from 1987 to 2004. On a two-stroke, the reed valve block sits between the carburettor and the engine. Its petals open under suction and close again as soon as the pressure reverses: the engine's pick-up and power depend on how quickly they react and how much air gets through.

Specifications

• Brand: BOYESEN
• Manufacturer part number: BOYRAD-13
• Weight: 300 g
• Engine: 2-stroke

Who is it for?

• Original cage damaged, or petals wearing out again and again.
• You want more pick-up and response when you open the throttle.

Good to know

Check the petals at every piston change and replace them as soon as a tip is chipped.

Fitting tips

1. Clean the gasket face of the cylinder or crankcase.
2. Fit the reed valve block with a new gasket, petals facing the engine.
3. Tighten the screws in a criss-cross pattern to the recommended torque.
4. Check the carburation and the colour of the spark plug after the first few rides.

Why BOYESEN?

Boyesen is an American brand specialising in the intake and the engine covers of two-stroke engines: reed petals, RAD Valve reed blocks, engine covers and Supercooler water pumps.

Spare parts and items to plan

• Reed block gasket : V FORCE
• Reed petals : BOYESEN · TECNIUM
• Spark plug : see the selection

Frequently asked questions

Do I need to change the jetting?
Usually not; check the colour of the spark plug after the first few rides and adjust if needed.

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
KAWASAKI KX 500 2004
KAWASAKI KX 500 2003
KAWASAKI KX 500 2002
KAWASAKI KX 500 2001
KAWASAKI KX 500 2000
KAWASAKI KX 500 1999
KAWASAKI KX 500 1998
KAWASAKI KX 500 1997
KAWASAKI KX 500 1996
KAWASAKI KX 500 1995
KAWASAKI KX 500 1994
KAWASAKI KX 500 1993
KAWASAKI KX 500 1992
KAWASAKI KX 500 1991
KAWASAKI KX 500 1990
KAWASAKI KX 500 1989
KAWASAKI KX 500 1988
KAWASAKI KX 500 1987