236M05700 Wiseco .040 Piston Kit for Yamaha Tri-Moto 125 1980-1985 57.00 mm

Wiseco .040 Piston Kit for Yamaha Tri-Moto 125

This Wiseco .040 overbore piston kit for Yamaha Tri-Moto 125 models renews top-end compression and power, with the 236M05700 piston sized at 57.00 mm and cross-referenced to the matching bore dimension.

Overview

This Wiseco .040 piston kit for Yamaha Tri-Moto 125 three-wheelers is a forged top-end replacement designed to bring a worn engine back to spec after a cylinder overbore. The 236M05700 piston measures 57.00 mm and suits riders and shops rebuilding a 1980-1985 Tri-Moto 125 top end. Each kit supplies the piston, rings, wrist pin, and clips for a complete rebuild.

Built For Performance

• Forged piston construction for strength under high-compression loads
• .040 overbore size of 57.00 mm to match a re-bored cylinder
• Precision-machined ring grooves for consistent sealing and compression
• Wrist pin and circlips included for a complete top-end install
• Direct cross-reference to Wiseco part number 236M05700

Fits These Machines

• for Yamaha Tri-Moto 125 (1980-1985)

On-The-Job Use

• Top-end rebuilds after cylinder boring or honing
• Restoring compression on high-hour trail three-wheelers
• Shop rebuilds requiring an exact overbore piston size

Specs At A Glance

Good To Know

Q: Does this kit include rings and a wrist pin? A: Yes, this Wiseco piston kit comes with the piston, rings, wrist pin, and circlips for a complete top-end job. Confirm your cylinder is bored to 57.00 mm before installing.

Q: Can I install this piston in a stock cylinder? A: No, a .040 overbore piston requires the cylinder to be bored and honed to match the 57.00 mm size. Always measure bore clearance before assembly.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.