Yamaha YZ 250 (1986-1998) YZ 125 (1982-1991) Cylinder Powervalve Oil Seal O Ring

Yamaha YZ 250 (1986-1998) YZ 125 (1982-1991) Cylinder Powervalve Oil Seal & O Ring

A new powervalve shaft oil seal and o ring, fits on the righthand side of the cylinder. (item 24 & 25 on the diagram)

Stop all that black carbonised fuel leaking from the side of your engine !

Diagram shows 250 cylinder but these parts are the same for the 125 for the years listed.

YZ 125 1982-1991

YZ 250 1986-1998

YZ250WR 1989-1997