Wave Jammer 500 Pistons and Gasket Set for Yamaha 1989-1990 .010 in

.010" Pistons and Gasket Set for Yamaha Wave Jammer 500

This .010" oversize piston and gasket set is built for the Yamaha Wave Jammer 500, supplying the pistons, rings, and gaskets needed to complete a top-end rebuild after a cylinder bore.

Overview

This .010" pistons and gasket set is made for the Yamaha Wave Jammer 500 PWC engine and works as a top-end rebuild kit for riders machining a worn cylinder. The piston and gasket set for Yamaha Wave Jammer 500 combines oversize pistons with the gaskets needed to reseal the engine afterward. It fits the 1989-1990 Wave Jammer 500 and suits DIY mechanics and repair shops alike.

Built For Performance

• .010 inch oversize pistons sized for a bored-over cylinder
• Piston rings included for a matched top-end seal
• Gasket set covers the seals disturbed during a top-end rebuild
• Machined piston bodies for consistent bore clearance
• Sold as a matched set for the engine

Fits These Machines

• for Yamaha Wave Jammer 500, 1989
• for Yamaha Wave Jammer 500, 1990

On-The-Job Use

• Top-end rebuilds after cylinder boring or honing
• Restoring compression on a high-hour Wave Jammer 500
• Freshwater and saltwater PWC engine refresh work
• Seasonal maintenance on older two-stroke personal watercraft

Specs At A Glance

Good To Know

Q: Do I need to bore the cylinder to fit these pistons? A: Yes, .010" oversize pistons require the cylinder to be bored and honed to the matching clearance before installation.

Q: Can I install these without checking ring end gap? A: No, always measure ring end gap and piston-to-cylinder clearance during assembly to avoid poor sealing or seizure.

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