PISTON KIT 86-88 YAMAHA YZ 125 57.5mm 1.5mm OVER VINTCO PSY29-1.5

This VintCo piston kit is designed for 1986–1988 Yamaha YZ125 models and suits vintage 2-stroke engine rebuilds requiring a 57.5 mm piston in a +1.5 mm oversize. The kit includes the piston, rings, pin and clips, and is manufactured using modern materials and production techniques to provide OEM-equivalent fitment and performance. It is intended to help keep vintage motorcycles in service, with a wrist pin bearing available separately.

Features

• Complete piston kit includes piston, rings, pin and clips
• Intended for vintage 2-stroke engine rebuilds
• OEM-equivalent fitment and performance
• Wrist pin bearing sold separately
• MoS2 coated for break-in
• Manufactured in Germany

Specifications

• VintCo Part Number: PSY29-1.5
• Piston diameter: 57.5 mm
• Oversize: +1.5 mm
• Piston measurement: 57.44 mm
• Clearance: 0.06 mm
• Forged piston construction

Vehicle Fitments

• 1986 Yamaha YZ125
• 1987 Yamaha YZ125
• 1988 Yamaha YZ125