757M08450 Wiseco .020 Piston Kit 84.50 mm for Yamaha Wave Runner 1200 1997-1999

Wiseco .020 Piston Kit for Yamaha Wave Runner 1200

This Wiseco .020 overbore piston kit for Yamaha Wave Runner 1200 watercraft provides a 84.50 mm bore size, serving as a rebuild component for 1997-1999 models in need of top-end service.

Overview

This Wiseco piston kit for Yamaha Wave Runner 1200 machines is an overbore replacement set sized at .020 oversize. It restores compression and cylinder sealing on worn 1200cc engines. It suits riders and mechanics rebuilding 1997-1999 Wave Runner 1200 powerplants.

Built For Performance

• .020 inch overbore sizing at 84.50 mm bore diameter
• Forged piston construction for strength under load
• Kit format with piston, rings, and pin components
• Designed to restore cylinder seal after wear

Fits These Machines

• for Yamaha Wave Runner 1200, 1997-1999

On-The-Job Use

• Top-end rebuilds after cylinder scoring or low compression
• Bore-and-hone service requiring oversize pistons
• Freshwater and saltwater personal watercraft engine work

Specs At A Glance

Good To Know

Q: What does .020 oversize mean for my engine? A: A .020 oversize piston is 0.020 inch larger than stock, so the cylinder must be bored and honed to match before installation.

Q: Can I install this kit without machining the cylinder? A: No, an oversize piston requires the cylinder to be bored to the matching size for correct piston-to-wall clearance.

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