This VintCo piston kit is designed for 1980-1981 Yamaha YZ465 models and is intended for vintage 2-stroke engine rebuilds using a 1.0 mm oversize piston. Manufactured with modern materials and production techniques for OEM-equivalent or better fit and performance, the kit includes the piston, rings, pin and clips for a complete replacement assembly. It is a forged piston made in Germany and finished with a MoS2 coating to assist running-in.

Features

• Complete piston kit for vintage 2-stroke Yamaha YZ465 applications
• Includes piston, rings, pin and clips
• Intended to help restore engine serviceability
• Wrist pin bearing available separately
• Additional size options available
• MoS2-coated to assist break-in

Specifications

• VintCo Part Number: PSY06-1.0
• Piston diameter: 86.0 mm
• Oversize: +1.0 mm
• Measured size: 85.92 mm
• Clearance: 0.08 mm
• Forged piston construction
• Country of manufacture: Germany

Cross-Reference OEM Part Numbers

• 4V4-11638-00-00
• 3R5-11638-00-00

Vehicle Fitments

• 1980 Yamaha YZ465
• 1981 Yamaha YZ465