Yamaha YZ 250 F (CG 40) [2019] - WÖSSNER forged pistons

WÖSSNER forged pistons for Yamaha YZ 250 F (CG 40), built in 2019

The WÖSSNER forged piston is a forged aluminum version for the Yamaha YZ 250 F (CG 40) built in 2019. The information on piston diameter, oversize, bore diameter and compression ratio supports the selection of the right piston for the intended engine.

Technical features

• Material: aluminum
• Piston Type: Forged
• Piston compression: standard
• Diameter: Ø 76.97 mm
• Letter oversize: C
• Oversize: +0.02
• Bore diameter: 77.02mm
• Compression ratio: 13.7:1

Vehicle assignment

The piston is intended for the Yamaha YZ 250 F (CG 40), built in 2019. The complete year range of the specified allocation only includes the year 2019.

Selection Notes

Before making your selection, compare in particular the diameter Ø 76.97 mm, the oversize letter C, the oversize specification +0.02 and the bore diameter 77.02 mm with the requirements of the engine. The compression ratio is 13.7:1; piston compression is specified as standard. This combination of forged design, aluminum and the dimensions mentioned defines the technical design of this piston.