Yamaha YZ 250 F (CG 14) [2003] - WÖSSNER forged pistons

WÖSSNER forged pistons for Yamaha YZ 250 F

The WÖSSNER forged piston is designed for the Yamaha YZ 250 F (CG 14) built in 2003. As a component from the Engine, Top Engine and Piston areas, it offers a clearly defined basis for selecting a suitable piston based on the specified technical data.

Execution and construction

The piston is made of aluminum and is forged. The specific design is given as a forged double bridge. This allows the design to be clearly distinguished from other piston types and design variants.

Technical data

• Material: aluminum
• Piston Type: Forged
• Diameter Ø: 76.96 mm
• Letter oversize: A
• Oversize: STD
• Bore diameter: 77.00 mm
• Compression ratio: 13.5:1
• Rings Quantity: 3
• Specificity: Forged double bridge

Vehicle assignment

The forged piston is intended for the Yamaha YZ 250 F (CG 14), built in 2003. The selection should be based on the vehicle assignment and the listed piston and bore dimensions.

Factual information on selection

The piston diameter of 76.96 mm, the bore diameter of 77.00 mm and the compression ratio of 13.5:1 are particularly relevant for the assignment. In addition, the markings “A” for letters oversize and “STD” for oversize must be taken into account.