772M06500 Wiseco Piston Kit .020 for Yamaha RT180 1990-1998 65.00mm

Wiseco .020 Piston Kit for Yamaha RT180

This Wiseco .020 piston kit is a 65.00 mm oversize rebuild component for the Yamaha RT180, produced under OEM cross-reference 772M06500 to restore top-end compression.

Overview

This Wiseco .020 piston kit for Yamaha RT180 two-strokes provides a 65.00 mm oversize bore solution for mildly worn cylinders. The kit includes the piston and matching components needed for a clean top-end refresh. It suits riders and mechanics rebuilding a 1990-1998 RT180 engine.

Built For Performance

• 65.00 mm oversize bore for light cylinder cleanup and re-honing
• Wiseco forged piston construction for strength under two-stroke heat and load
• Cross-reference 772M06500 confirms the correct oversize application
• Designed to restore compression lost to piston and ring wear
• Suited to OEM-style top-end rebuild procedures

Fits These Machines

• for Yamaha RT180, 1990-1998

On-The-Job Use

• Top-end rebuilds after a worn or lightly scored piston
• Cylinder re-boring projects that step up to a .020 oversize
• Trail and off-road engine refreshes on older RT180 machines
• Shop work where measured bore clearance matters

Specs At A Glance

Good To Know

Q: Does this kit require cylinder machining? A: A .020 oversize piston normally requires the cylinder to be bored and honed to the matching clearance, so measure before ordering. Q: How do I confirm the right oversize? A: Check the current bore diameter and the piston marking, then match it to 65.00 mm for this kit.

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