BOYESEN Reed Petals for BOYESEN reed valve for YAMAHA, KAWASAKI, HONDA, SUZUKI and HUSQVARNA 1988-1998

The BOYESEN BOYRL-11 set of reed petals is designed for YAMAHA YZ 125, HONDA CR 125, KAWASAKI KX 125, SUZUKI RM 125 and HUSQVARNA CR 125 from 1988 to 1998. In a two-stroke, the petals of the reed valve block open to let the mixture into the crankcase, then close to stop it coming back out. Tired or chipped petals don't close properly: the engine loses bottom end and sharpness.

Key features

• Designed for Boyesen reed blocks.
• Made in the USA.

Specifications

• Brand: BOYESEN
• Manufacturer part number: BOYRL-11
• EAN code: 804429007028
• Weight: 300 g
• Engine: 2-stroke

When to replace it?

• Petal tips chipped, split or frayed.
• Petals no longer sitting flat on the cage (visible gap).
• Weak pick-up at low revs, hard starting.

Inspect the petals at least once a season and at every piston change; replace them as soon as a tip is damaged.

Fitting tips

1. Remove the reed valve block and clean the cage.
2. Fit the petals the right way round and tighten the petal screws with threadlocker to the recommended torque.
3. Check that the petals sit flat on the cage before refitting.
4. Refit with a new reed block gasket.

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 : BOYESEN · V FORCE
• Spark plug : NGK 3230 · NGK 3530
• Carburettor repair kit : ALL BALLS · PROX

Frequently asked questions

Do I need to re-jet?
Usually not on a well-tuned engine; check the colour of the spark plug after the first few rides.

Compatibility

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

Fits:
HONDA CR 125 1991
HONDA CR 125 1990
HONDA CR 125 1989
HONDA CR 125 1988
HUSQVARNA CR 125 1997
HUSQVARNA CR 125 1996
HUSQVARNA CR 125 1995
KAWASAKI KX 125 1993
KAWASAKI KX 125 1992
KAWASAKI KX 125 1991
KAWASAKI KX 125 1990
KAWASAKI KX 125 1989
KAWASAKI KX 125 1988
SUZUKI RM 125 1997
SUZUKI RM 125 1996
SUZUKI RM 125 1995
SUZUKI RM 125 1994
YAMAHA YZ 125 1998
YAMAHA YZ 125 1997
YAMAHA YZ 125 1996
YAMAHA YZ 125 1995
YAMAHA YZ 125 1994
YAMAHA YZ 125 1992
YAMAHA YZ 125 1991
YAMAHA YZ 125 1990
YAMAHA YZ 125 1989
YAMAHA YZ 125 1988