WISECO Clutch Friction Plate Kit for YAMAHA YZ 125 1998-2004

On YAMAHA YZ 125 from 1998 to 2004, the WISECO WWPPF013 clutch friction plate kit fits in place of the original part. Every start and every hard acceleration wears the clutch linings a little. New friction plates give you back a clutch that holds the torque and bites cleanly at the lever.

Key features

• Complete set of friction plates to original dimensions.

Specifications

• Brand: WISECO
• Manufacturer part number: WWPPF013
• Friction plates: 8
• Weight: 320 g
• Engine: 2-stroke

When to replace it?

• Revs rise but the bike doesn't pick up speed (slipping), especially in the higher gears.
• Engagement point that wanders, clutch that judders or smells burnt.
• Plates below the minimum thickness given in the manual.

Measure plate thickness with a vernier caliper at every clutch check and replace the plates once they're below the minimum in the manual, or as soon as they slip.

Fitting tips

1. Soak the new friction plates in gearbox oil before fitting them.
2. Check the steel plates (flatness, blueing) and the clutch springs; replace them if necessary.
3. Make sure the basket fingers aren't notched: if they are, the clutch will snag.
4. Reassemble in the original order, tighten to the manufacturer's torque and close up with a new clutch cover gasket.

Why WISECO?

Wiseco forges and machines its pistons in Mentor, Ohio (USA), using forging tooling made in-house. A benchmark for forged motorcycle parts, the brand also produces valves, clutch baskets and clutch plates.

Spare parts and items to plan

• Clutch steel plates : HINSON · TECNIUM
• Clutch springs : HINSON · TOURMAX
• Clutch cover gasket : PROX · BOYESEN
• Gearbox oil : LIQUI MOLY 10W30 1 L · LIQUI MOLY 1 L

Frequently asked questions

Should the steel plates be replaced at the same time?
If they're blued, warped or marked, yes: fit new steel plates. If not, check them and keep them.

Compatibility

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

Fits:
YAMAHA YZ 125 2004
YAMAHA YZ 125 2003
YAMAHA YZ 125 2002
YAMAHA YZ 125 2001
YAMAHA YZ 125 2000
YAMAHA YZ 125 1999
YAMAHA YZ 125 1998