PROX Clutch Friction Plate Kit for YAMAHA WR 250, YZ 250 1991-1993

On YAMAHA WR 250, YZ 250 from 1991 to 1993, the PROX 16.S23014 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.

Specifications

• Brand: PROX
• Manufacturer part number: 16.S23014
• Weight: 300 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 PROX?

ProX Racing Parts has been supplying engine and clutch parts to motocross riders since 1975, from its headquarters near Amsterdam. According to its catalogue, most of its parts are made in Japan, by manufacturers that also produce parts for the Japanese motorcycle makers.

Spare parts and items to plan

• Clutch steel plates : ATHENA · HINSON
• Clutch springs : HINSON · BIHR
• Clutch cover gasket : BOYESEN · ATHENA
• Gearbox oil : LIQUI MOLY 10W30 1 L · LIQUI MOLY 80W 500 ml

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 WR 250 1993
YAMAHA WR 250 1992
YAMAHA WR 250 1991
YAMAHA YZ 250 1992
YAMAHA YZ 250 1991