Yamaha YZ 250 F (CG 34) [2014-2015] - WÖSSNER Pro Series forged pistons

WÖSSNER Pro Series forged pistons for Yamaha YZ 250 F

The WÖSSNER Pro Series forged piston is assigned to the Yamaha YZ 250 F (CG 34) from the 2014-2015 model year range. Its forged aluminum design combines the features relevant to this component in a clearly defined technical specification.

Technical execution

• Material: aluminum
• Piston Type: Forged
• Specificity: Forged double bridge
• Diameter Ø: 76.96 mm
• Letter oversize: B
• Oversize: +0.01
• Bore diameter: 77.01mm
• Compression ratio: 13.7:1
• Rings Quantity: 2
• Stroke: 2T

Vehicle assignment

The piston is intended for the Yamaha YZ 250 F (CG 34), built between 2014 and 2015. This assignment supports selection based on model name and complete year of manufacture.

Selection based on measurements

The piston diameter of 76.96 mm, the bore diameter of 77.01 mm and the marking “B” as the letter of the oversize are available for the technical classification. The oversize +0.01 specification supplements the dimensional specification. The compression ratio of 13.7:1 and the design with 2 rings complete the specified characteristics of this WOSSNER piston.