YAMAHA WR 250 F [2020-2027] - 4-stroke forged piston kit - ø77.00mm

WISECO 4-stroke forged piston kit for the YAMAHA WR 250 F

The WISECO forged piston kit is designed for the YAMAHA WR 250 F from the full 2020-2027 model year range. The design is tailored to a 4-stroke engine and offers defined technical parameters for selecting a suitable piston in the upper engine range.

Pistons and technical design

• Material: aluminum
• Piston type: forged
• Piston compression: standard
• Diameter Ø: 76.96 mm
• Letter oversize: B
• Oversize: +0.01
• Compression ratio: 13.8:1
• Rings Quantity: Set
• Stroke: 4T

Vehicle assignment

The kit fits the YAMAHA WR 250 F in the 2020-2027 model year range. The complete model and year assignment makes selection easier for work on the piston in the 4-stroke engine of this series.

Selection note

The diameter of 76.96 mm, the oversize +0.01 and the marking B are particularly relevant for the selection of parts. The 13.8:1 compression ratio and standard piston compression are other fixed features of this version. The piston ring set is designed as a set.