YAMAHA YZ 250 [1988-1991] - forged pistons

WISECO forged pistons for YAMAHA YZ 250 from 1988 to 1991

The WISECO forged piston is designed as a piston for the YAMAHA YZ 250 in the entire 1988–1991 model year range. The technical configuration combines a forged piston type with aluminum as the material and a standard piston compression.

Technical execution

• Piston Type: Forged
• Material: aluminum
• Piston compression: standard
• Diameter Ø: 68.50 mm
• Letter oversize: 050
• Oversize: +0.05
• Stroke: 2T

With a diameter of 68.50 mm and the specified oversize of +0.05, this piston should be selected based on the existing engine and dimension information. The marking “050” supplements the technical classification of the oversize.

Vehicle assignment

The forged piston is assigned to the YAMAHA YZ 250 from the 1988-1991 model year range. This vehicle assignment serves as a selection aid for the appropriate model and year combination.

Factual advice on selection

Before ordering, the vehicle type, year of manufacture and the specified diameter, oversize and 2T version must be compared with the intended use. This means that the technical design can be selected specifically based on the relevant piston data.