VintCo PSY27-1.5 is a forged piston kit for vintage Yamaha 2-stroke applications, referenced in the product title for IT/YZ 175/250 models and supplied here in a 69.5 mm (+1.5 mm oversize) size for the listed 1983-1987 YZ250 applications. The kit includes the piston, rings, pin and clips, and is manufactured in Germany using modern materials and manufacturing techniques to provide OEM-standard fit and performance. The piston is MoS2 coated for running-in, while the wrist pin bearing is available separately and additional size options are also available.

Features

• Complete piston kit with piston, rings, pin and clips
• Suitable for vintage Yamaha 2-stroke rebuilds
• Forged piston
• Coated to assist running-in
• OEM-standard fit and performance
• Wrist pin bearing sold separately
• Additional size options available

Specifications

• VintCo Part Number: PSY27-1.5
• Bore size: 69.5 mm
• Oversize: +1.5 mm
• Piston measurement: 69.44 mm
• Clearance: 0.06 mm
• Coating: MoS2
• Country of manufacture: Germany

Vehicle Fitments

• 1983 Yamaha YZ250
• 1984 Yamaha YZ250
• 1985 Yamaha YZ250
• 1986 Yamaha YZ250
• 1987 Yamaha YZ250