Yamaha WR 450 F (CJ 09) [2006] - WÖSSNER Pro Series forged pistons

WÖSSNER Pro Series forged pistons for Yamaha WR 450 F

The WÖSSNER Pro Series forged piston is a high-compression piston solution for the Yamaha WR 450 F (CJ 09) built in 2006. Its technical characteristics support a targeted selection when revising the upper engine range.

Technical features

• Piston type: forged
• Material: aluminum
• Piston compression: highly compressed
• Diameter Ø: 94.97 mm
• Letter oversize: B
• Oversize: +0.01
• Bore diameter: 95.01mm
• Compression ratio: 13.5:1
• Rings Quantity: 2

Vehicle assignment

The forged piston is intended for the Yamaha WR 450 F (CJ 09), built in 2006. The vehicle assignment applies to this complete model year range: 2006.

Selection based on engine data

The piston diameter of 94.97 mm, the bore diameter of 95.01 mm, the marking B and the oversize of +0.01 are particularly relevant for the selection. The compression ratio of 13.5:1 describes the specified high-compression version. The version with two piston rings supplements the technical product data for assignment and testing before assembly.