BARNETT Clutch Spring Kit for YAMAHA WRF 400, YFM 660 RAPTOR 2WD, YZF 400 1998-2005

BARNETT offers these clutch springs for YAMAHA WRF 400, YFM 660 RAPTOR 2WD, YZF 400 1998-2005. The springs push on the pressure plate to clamp the plates together. With heat they lose strength and the clutch starts to slip.

Why replace the clutch springs?

The benefits:

• Stop slipping, especially under acceleration.
• Get a positive clutch back.
• Heavy-duty springs exist for tuned engines (slightly heavier lever).

Why choose BARNETT?

Barnett, an American manufacturer since 1948: clutch springs about 10-15 % stiffer than stock, shot-peened and heat-treated, for a clutch that no longer slips.

When should you replace the clutch springs on your YAMAHA YFM 660 RAPTOR 2WD?

Measure the friction plate thickness and the spring free length: below the manufacturer's minimum they must be replaced. Blued or warped steel plates are replaced too.

Specifications and fitting tips

• Manufacturer part number: 501-79-05036

Cross-Mania tip: Soak the friction plates in gearbox oil before fitting, check the basket for notches and replace the springs at the same time.

Also needed with this part

• Clutch plates : TECNIUM · PROX
• Clutch cover gasket : ATHENA · MOOSE
• 4-stroke engine oil : MOTUL 10W50 · LIQUI MOLY 10W40 1 L

Compatibility

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

Fits:
YAMAHA WRF 400 2000
YAMAHA WRF 400 1999
YAMAHA WRF 400 1998
YAMAHA YFM 660 RAPTOR 2WD 2005
YAMAHA YFM 660 RAPTOR 2WD 2004
YAMAHA YFM 660 RAPTOR 2WD 2003
YAMAHA YFM 660 RAPTOR 2WD 2002
YAMAHA YFM 660 RAPTOR 2WD 2001
YAMAHA YZF 400 1999
YAMAHA YZF 400 1998