Wossner forged Piston kitRef : WO00176A / 1093605003

The WÖSSNER forged piston (manufacturer reference 8179D100) is designed for engine modifications and replacements on 2 and 4-stroke machines. Made in Germany by a specialist in engine parts, it combines the lightweight properties of aluminum with the machining precision characteristic of forged pistons, ensuring consistent and controlled engine performance.

• Type: forged piston
• Material: aluminum
• Piston diameter: Ø 70.94 mm
• Recommended bore: 71.00 mm
• Oversize letter: 100
• Compression: standard
• Finish: anti-friction treated skirt
• Delivered with: ring(s), circlips, and pin

Designed for Cross and Roadster uses, this piston is suitable for restorations or refurbishments of the relevant cylinders. Its treated skirt minimizes friction between the piston and cylinder and facilitates the break-in process. Check the bore and oversize letter before installation to ensure proper piston fit.

Specifically suitable for the following classic models: YAMAHA YZ 250 (1979), YAMAHA DT 250 (1979), and YAMAHA TY 250 (1978). For any specific modifications, it is advisable to consult a qualified workshop to adjust clearance and timing according to your setup.