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

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

The WÖSSNER forged piston is assigned to the Yamaha WR 250 F (CG 30) in the full year range from 2008 to 2014. It features a forged aluminum construction and is specified with a forged double bridge.

Technical features

• Material: aluminum
• Piston Type: Forged
• Diameter Ø: 76.97 mm
• Letter oversize: B
• Oversize: +0.01
• Bore diameter: 77.01mm
• Compression ratio: 13.5:1
• Rings Quantity: 3
• Stroke: 2T
• Specificity: Forged double bridge

Selection and assignment

The combination of the oversize letter B, the oversize specification +0.01 and the bore diameter 77.01 mm supports the comparison with the technical requirements of the engine. When selecting the vehicle, the exact assignment to the Yamaha WR 250 F (CG 30), built between 2008 and 2014, is crucial.

Technical design

The compression ratio of 13.5:1 and the design with three rings are given as the key technical characteristics of the piston. The forged double bridge complements the design specification of the aluminum piston.