PISTON KIT 83-87 YZ250 69.00, WOSSNER 8133D100 YAMAHA MXPiston kit 69mm Bore 68. 94 Wossner 8133D100 (+1. 00) YAMAHA YZ250 1983 1987, Wossner forged pistons are superior in strength and design. Engineered to provide the best possible path for combustion chamber heat transfer to cylinder walls. Elliptically designed to provide a more uniform bearing surface under piston heat expansion, eliminating localized pressure and distributing thrust loads more evenly, thereby preventing piston collapse. Made in

Wossner forged piston kit designed for Yamaha YZ250 and IT250 models from 1980 to 1982

YZ 250 1994 - 1997

This tool ensures that the bearing is pulled perfectly straight

and reliability

Product comes complete with trigger

Usually Crank seals will be replaced as part of a full engine rebuild but it's not uncommon for seals the need replacement outside of the normal full rebuild schedule

M specifications and tolerances are meticulously maintained

Fits Motoplat small internal rotor MX & ENDURO

Cross-Reference OEM Part Numbers

By keeping the Clutch Lifter/Push arm bearings and seals without play can give you up to 10-20% more clutch movement

WR 250 F 2020-2024

ATF is a high-quality oil for use in automatic