646M04750 Wiseco Piston Kit for Yamaha YZ80 1993-2000 47.50 mm .020

Piston Kit for Yamaha YZ80

This Wiseco .020 over piston kit for Yamaha YZ80 1993-2000 rebuilds the top end with a 47.50 mm bore size, cross-referenced to 646M04750.

Overview

This piston kit for Yamaha YZ80 models gives riders a complete top-end rebuild solution with a .020 oversize bore. The 47.50 mm piston kit for Yamaha YZ80 restores compression and performance after cylinder wear. Ideal for mechanics and riders rebuilding 1993-2000 YZ80 engines.

Built For Performance

• 47.50 mm bore size for .020 oversize cylinders
• Forged construction for strength under high RPM
• Includes piston, rings, pin, and clips
• Precision machined for consistent fitment
• Designed to match OEM bore specifications
• Cross-referenced to 646M04750

Fits These Machines

• for Yamaha YZ80 1993
• for Yamaha YZ80 1994
• for Yamaha YZ80 1995
• for Yamaha YZ80 1996
• for Yamaha YZ80 1997
• for Yamaha YZ80 1998
• for Yamaha YZ80 1999
• for Yamaha YZ80 2000

On-The-Job Use

• Top-end rebuilds after cylinder wear
• Routine engine maintenance on YZ80 machines
• Restoring compression on high-hour engines
• Oversize boring when the stock cylinder is worn

Specs At A Glance

Good To Know

Q: Does this kit include rings and pin? A: Yes, this piston kit ships with the piston, rings, wrist pin, and clips needed for a rebuild. Q: Will this fit a stock cylinder without boring? A: No, this .020 oversize piston requires the cylinder to be bored and honed to 47.50 mm first.

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