ALL BALLS Countershaft Repair Kit for YAMAHA WR 250, YZ 250 1978-1998

ALL BALLS offers this countershaft seal kit for YAMAHA WR 250, YZ 250 1978-1998. The front sprocket drives the chain. Its shaft passes through the case and an oil seal (often with a bush) keeps the oil in.

Why replace this seal?

The benefits:

• Stop an oil leak behind the sprocket.
• Protect the gearbox from running low on oil.

Why choose ALL BALLS?

Complete All Balls kits: low-friction bearings and steel-spring nitrile seals, everything you need in one box.

When should you replace this part?

Seepage around the shaft, a dropping oil level or, on a two-stroke, an idle that creeps up on its own are warning signs. The seal is also replaced every time the cases are split.

Specifications and fitting tips

• Countershaft seal kit
• For a high quality renewing
• Manufacturer part number: 25-4022

Cross-Mania tip: Fit the seal square with a greased lip and check the running surface on the shaft: a worn surface quickly wears a new seal.

Also needed with this part

• Gearbox oil : LIQUI MOLY 10W30 1 L · LIQUI MOLY 500 ml

Compatibility

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

Fits:
YAMAHA WR 250 1997
YAMAHA WR 250 1996
YAMAHA WR 250 1995
YAMAHA WR 250 1994
YAMAHA WR 250 1993
YAMAHA WR 250 1992
YAMAHA WR 250 1991
YAMAHA YZ 250 1998
YAMAHA YZ 250 1997
YAMAHA YZ 250 1996
YAMAHA YZ 250 1995
YAMAHA YZ 250 1994
YAMAHA YZ 250 1993
YAMAHA YZ 250 1992
YAMAHA YZ 250 1991
YAMAHA YZ 250 1990
YAMAHA YZ 250 1989
YAMAHA YZ 250 1988
YAMAHA YZ 250 1987
YAMAHA YZ 250 1986
YAMAHA YZ 250 1985
YAMAHA YZ 250 1984
YAMAHA YZ 250 1983
YAMAHA YZ 250 1982
YAMAHA YZ 250 1981
YAMAHA YZ 250 1980
YAMAHA YZ 250 1979
YAMAHA YZ 250 1978