VintCo PSY13-1.25 is a piston kit for 1973-1975 Yamaha 350R5 models, supplied as one complete piston assembly for vintage 2-stroke engine service. Sized at 65.25 mm with a +1.25 mm oversize, it is manufactured using modern materials and production methods to provide OEM-equivalent or better fit and performance. The kit includes the piston, rings, pin and clips, while the wrist pin bearing is available separately. Additional size options are also available.

Features

• Complete piston assembly for vintage 2-stroke engine rebuilds
• Includes 1 piston, rings, pin and clips
• Intended to provide OEM-equivalent or better fit and performance
• Wrist pin bearing sold separately
• Additional size options available

Specifications

• VintCo Part Number: PSY13-1.25
• Nominal piston size: 65.25 mm
• Oversize: +1.25 mm
• Piston measurement: 65.18 mm
• Clearance: 0.07 mm
• Construction: Forged
• Coating: MoS2
• Country of manufacture: Germany

Vehicle Fitments

• 1973 Yamaha 350R5
• 1974 Yamaha 350R5
• 1975 Yamaha 350R5