Yamaha YZ 250 F (CG 25) [2006] - WÖSSNER forged pistons

WÖSSNER forged pistons for the Yamaha YZ 250 F

The WÖSSNER forged piston is designed as a forged aluminum version for the Yamaha YZ 250 F (CG 25), built in 2006. The specific dimensional design supports a targeted selection based on piston diameter, bore diameter and oversize.

Function and execution

As a piston for the upper engine area, this component combines a forged design with a double bridge. The version is provided with 3 piston rings and has a compression ratio of 12.5:1.

Technical data

• Material: aluminum
• Piston Type: Forged
• Specificity: Forged double bridge
• Diameter Ø: 76.97 mm
• Letter oversize: B
• Oversize: +0.01
• Bore diameter: 77.01mm
• Compression ratio: 12.5:1
• Number of piston rings: 3

Vehicle assignment

Suitable for Yamaha YZ 250 F (CG 25), built in 2006. When making the selection, the specified piston diameter of 76.97 mm, the bore diameter of 77.01 mm and the oversize B with +0.01 must be taken into account.

Factual note

Before making your selection, please compare the technical dimensions and vehicle assignment with the existing engine. The information on the compression ratio and the number of piston rings helps to clearly classify the specific version.