236M05600 Piston Kit for Yamaha AT2 AT3 125 1972-1973 Wiseco Std 56.00 mm

Wiseco Std Piston Kit for Yamaha AT2 and AT3 125

This standard bore piston kit for Yamaha AT2 and AT3 125 models is a 56.00 mm replacement piston assembly designed to restore compression and top-end performance in 1972-1973 two-stroke engines, cross-referenced under part number 236M05600.

Overview

This Wiseco Std Piston Kit for Yamaha AT2 and AT3 125 gives riders a precision-made top-end replacement for worn or damaged pistons. The 56.00 mm standard bore piston kit for Yamaha AT2 and AT3 125 restores proper sealing and compression so the engine can run cleanly again. It suits mechanics and owners rebuilding a 1972-1973 Yamaha 125 two-stroke.

Built For Performance

• Standard 56.00 mm bore size for stock cylinder dimensions
• Forged piston construction for strength under two-stroke combustion loads
• Part number 236M05600 for straightforward cross-reference
• Kit format with piston, rings, wrist pin, and circlips for a complete top-end refresh
• Designed for 1972-1973 Yamaha AT2 and AT3 125 engines
• Precision machining supports consistent ring seal and compression

Fits These Machines

• for Yamaha AT2 125 (1972-1973)
• for Yamaha AT3 125 (1972-1973)

On-The-Job Use

• Top-end rebuilds after piston scoring or ring wear
• Restoring compression on high-mileage two-stroke engines
• Vintage restoration projects for 1970s Yamaha 125 models
• Routine engine refresh during cylinder inspection

Specs At A Glance

Good To Know

Q: Does this kit include rings and wrist pin? A: Wiseco piston kits of this type normally ship as a complete top-end set with piston, rings, wrist pin, and circlips. Confirm the listing contents before ordering.

Q: How do I know if I need standard bore? A: Standard bore fits an unmodified stock cylinder, so measure the bore and check piston-to-wall clearance before purchase. If the cylinder has been honed or bored oversize, a matching oversize piston is required.

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