Size B .020 Over Bore Piston Bearing Gasket Kit for Yamaha 1993-2001 YZ80 47.5mm

Size B .020 Over Bore Piston Bearing Gasket Kit for Yamaha

This .020 over bore piston bearing gasket kit provides all components necessary for a top-end rebuild on Yamaha YZ80 engines from 1993 to 2001, with a 47.5mm bore size.

Overview

This piston bearing gasket kit is a complete top-end rebuild set for the Yamaha YZ80, sized as a .020 over bore at 47.5mm. It includes the piston, wrist pin bearing, and full gasket set to restore compression and power. Designed for 1993-2001 YZ80 models, this kit ensures a precise fit after cylinder boring.

Built For Performance

• Forged piston construction for high strength and heat resistance
• Precision-ground wrist pin bearing for smooth operation
• Complete gasket set includes head, base, and exhaust gaskets
• .020 oversize compensates for cylinder wear
• Matched piston rings for proper sealing
• Designed for high-RPM two-stroke applications

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)
• for Yamaha YZ80 (2001)

On-The-Job Use

• Used for top-end rebuilds on Yamaha YZ80 motocross bikes
• Ideal for restoring compression and engine performance
• Suitable for both recreational trail riding and competitive racing
• Required when boring the cylinder to .020 oversize
• Commonly installed by DIY mechanics and professional shops

Specs At A Glance

Good To Know

Q: Will this kit work on a 1995 YZ80? A: Yes, this kit is specifically designed for Yamaha YZ80 models from 1993 to 2001, including the 1995 model.

Q: Is the piston ring gap already set? A: The piston rings are matched to the piston but may require final gap verification after cylinder boring.

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