477M04700 Wiseco Standard Piston Kit 47.00mm for Yamaha YZ80 1982-1983

Piston Kit for Yamaha YZ80

This Wiseco standard bore piston kit for Yamaha YZ80 gives a 47.00 mm bore size for stock cylinders, and it cross-references to 477M04700.

Overview

This piston kit for Yamaha YZ80 is a standard bore replacement built to restore compression on an unworn or correctly sized cylinder. The 47.00 mm piston for Yamaha YZ80 carries the Wiseco 477M04700 kit number, making it a direct match for stock bore rebuilds. It suits riders rebuilding 1982 to 1983 YZ80 engines who need a matched piston and ring set.

Built For Performance

• Forged piston construction for durability under two-stroke heat and rpm
• Standard 47.00 mm bore size for stock, unbored cylinders
• Kit supplied with piston, rings, wrist pin, and circlips for a complete top-end refresh
• Wiseco 477M04700 part number matches the listing reference for easy verification
• Machined ring grooves and skirt profile suited to two-stroke port timing

Fits These Machines

• for Yamaha YZ80 1982
• for Yamaha YZ80 1983

On-The-Job Use

• Top-end rebuilds on stock bore cylinders
• Routine maintenance after piston or ring wear
• Motocross and trail riding on older YZ80 machines
• Restoring compression without machining the cylinder oversize

Specs At A Glance

Good To Know

Q: What does standard bore mean for this piston kit? A: It means the piston is sized for a cylinder still at its original stock bore. No oversize machining is required when the cylinder is within spec.

Q: Does the kit include rings and a wrist pin? A: A Wiseco piston kit of this type normally ships with the piston, rings, wrist pin, and circlips. Confirm the exact contents with the listing before ordering.

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