1990-1994 Yamaha YZ250 Piston Kit, Gasket set, and bearing
Mitaka top end rebuild kit consisting of:
Mitaka Piston Kit
Piston - High silicon aluminium alloy, CNC machined, Teflon coating in high friction areas.
Rings - Are the best available. Riken are the same manufacturer used on many Japanese and European OEM pistons.
Gudgeon Pin - Hollow, forged, steel alloy, chromed, high strength and hardness.
Clearance 0.045mm-0.055mm
Small End Bearing
Small end bearing, made in Japan. Roller bearing with heavy duty roller cage designed for high RPM and durability.
Mitaka Gasket Set
Head gasket or O-rings, Base gasket, Exhaust valve gaskets, Exhaust pipe O-rings & various O-rings if required. All gaskets and rings that are needed for a piston change are included.
Suits Yamaha YZ250 years 1990, 1991, 1992, 1993, 1994.
All Mitaka components are engineered to OEM specifications or higher using the same manufacturing techniques and high quality materials.
PLEASE NOTE IMAGES FOR ILLUSTRATION ONLY. You will receive the item listed above. The images shown are Mitaka components, however some have a different fitment to the components listed.