This VintCo piston kit is designed for the 1981 Yamaha YZ80 and provides a replacement piston assembly for vintage 2-stroke engine rebuilding. Manufactured using modern materials and production techniques, it is intended to deliver OEM-equivalent fitment and performance. The kit includes the piston, rings, pin and clips, and the forged piston is MoS2-coated to support initial running-in. A wrist pin bearing is available separately, additional size options are available, and fitment can be checked against OEM part number references.

Features

• Replacement piston kit for vintage 2-stroke engine service
• Intended to provide OEM-equivalent fitment and performance
• Includes piston, rings, pin and clips
• Supports initial running-in
• Wrist pin bearing sold separately
• Additional size options available

Specifications

• VintCo Part Number: PSY12-1.5
• Product type: Piston kit
• Piston type: Forged
• Coating: MoS2
• Country of manufacture: Germany
• Piston size: 50.5 mm
• Oversize: +1.5 mm
• Measured size: 50.45 mm
• Clearance: 0.05 mm

Vehicle Fitments

• 1981 Yamaha YZ80