BOYESEN Reed Petals for OEM reed valve for HUSQVARNA CR, TE, WR, XC 250, 400, 430, 500 1982-2002

The BOYESEN BOY616 set of reed petals is designed for HUSQVARNA CR 250, CR 430, CR 500, TE 400, WR 250, WR 400, WR 430, XC 430, XC 500 from 1982 to 2002. 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 to fit the stock reed block.
• Designed for Boyesen reed blocks.
• Made in the USA.

Specifications

• Brand: BOYESEN
• Manufacturer part number: BOY616
• EAN code: 804429003112

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 : see the selection
• Spark plug : NGK 3430 · NGK 2611
• Carburettor repair kit : PROX 55.10584 · PROX 55.10583

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:
HUSQVARNA CR 250 1988
HUSQVARNA CR 250 1987
HUSQVARNA CR 250 1986
HUSQVARNA CR 250 1985
HUSQVARNA CR 250 1984
HUSQVARNA CR 250 1983
HUSQVARNA CR 250 1982
HUSQVARNA CR 430 1988
HUSQVARNA CR 500 1988
HUSQVARNA CR 500 1987
HUSQVARNA CR 500 1986
HUSQVARNA CR 500 1985
HUSQVARNA CR 500 1984
HUSQVARNA CR 500 1983
HUSQVARNA CR 500 1982
HUSQVARNA TE 400 2002
HUSQVARNA TE 400 2001
HUSQVARNA WR 250 1988
HUSQVARNA WR 250 1987
HUSQVARNA WR 250 1986
HUSQVARNA WR 250 1985
HUSQVARNA WR 250 1984
HUSQVARNA WR 250 1983
HUSQVARNA WR 250 1982
HUSQVARNA WR 400 1988
HUSQVARNA WR 400 1987
HUSQVARNA WR 400 1986
HUSQVARNA WR 400 1985
HUSQVARNA WR 400 1984
HUSQVARNA WR 430 1988
HUSQVARNA XC 430 1988
HUSQVARNA XC 500 1988
HUSQVARNA XC 500 1987
HUSQVARNA XC 500 1986
HUSQVARNA XC 500 1985
HUSQVARNA XC 500 1984
HUSQVARNA XC 500 1983