Yamaha WR 250 F (CG 30) [2008-2014] - WÖSSNER forged pistons

WÖSSNER forged pistons for Yamaha WR 250 F (CG 30)

The forged WÖSSNER piston is designed for the Yamaha WR 250 F (CG 30) in the entire model year range from 2008 to 2014. The aluminum version has a forged double bridge and is assigned to the engine, top engine and piston range.

Design and technical features

• Material: aluminum
• Piston Type: Forged
• Specificity: Forged double bridge
• Diameter Ø: 76.98 mm
• Bore diameter: 77.02mm
• Letter oversize: C
• Oversize: +0.02
• Compression ratio: 13.5:1
• Rings Quantity: 3
• Stroke: 2T

Vehicle assignment

This WÖSSNER forged piston fits the Yamaha WR 250 F (CG 30), built between 2008 and 2014. The assignment applies to this vehicle type and the specified year of manufacture.

Selection based on measurements

The piston diameter of 76.98 mm, the bore diameter of 77.02 mm, the oversize +0.02 and the oversize letter C are decisive for identification. The compression ratio is 13.5:1. The version has 3 piston rings and is specified as a forged piston with a double bridge.