236M05600 Wiseco Std Piston Kit for Yamaha IT125 1980-1981 56.00 mm

Wiseco Std Piston Kit for Yamaha IT125

This Wiseco Std piston kit (236M05600, 56.00 mm) is a forged replacement piston assembly that restores compression and top-end performance for Yamaha IT125 two-stroke engines from 1980 to 1981.

Overview

This piston kit is a top-end rebuild component for the Yamaha IT125, giving the engine a fresh standard-bore piston after wear or a cylinder refresh. The Std piston measures 56.00 mm, matching the original bore size without requiring an overbore. Riders and shops rebuilding the Yamaha IT125 top end use this kit to bring compression and power back to spec.

Built For Performance

• Forged piston construction for strength under two-stroke combustion loads
• Standard bore at 56.00 mm for original-spec cylinders
• Wiseco piston kit reference 236M05600 matches the Yamaha IT125 application
• Designed for two-stroke top-end service with matched ring and pin fitment
• Standard sizing suits cylinders still within factory bore tolerance

Fits These Machines

• for Yamaha IT125 1980
• for Yamaha IT125 1981

On-The-Job Use

• Top-end rebuilds on cylinders within standard bore spec
• Compression restoration on a tired Yamaha IT125 engine
• Trail and off-road riding maintenance for older two-stroke machines
• Routine piston replacement during a top-end service

Specs At A Glance

Good To Know

Q: How do I know if this standard bore piston fits my cylinder? A: Measure your cylinder bore and check piston-to-cylinder clearance to confirm it is still within standard spec. If the bore is worn or has been honed oversize, choose the matching oversize piston instead.

Q: Can I install this myself? A: Yes, if you have experience with two-stroke top-end work and the proper measuring tools to verify piston-to-cylinder clearance. For best results, have a machinist confirm the bore and 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.