602M07700 Wiseco Std Piston Kit 77.00 mm for Yamaha Super Jet 650 1990-1993

Wiseco Std Piston Kit for Yamaha Super Jet 650

This Wiseco standard piston kit for Yamaha Super Jet 650 keeps the factory 77.00 mm bore size and carries OEM part number 602M07700.

Overview

This Wiseco piston kit for Yamaha Super Jet 650 is a standard bore replacement made for 1990 through 1993 models. The 77.00 mm standard size lets you rebuild the top end without machining the cylinder oversize. It suits personal watercraft owners and shops servicing Yamaha Super Jet 650 engines.

Built For Performance

• Standard 77.00 mm bore size for stock cylinders
• Forged piston construction from Wiseco
• Kit format includes piston for top-end rebuild
• Cross-references OEM part 602M07700
• Standard bore maintains original cylinder dimensions

Fits These Machines

• for Yamaha Super Jet 650 1990
• for Yamaha Super Jet 650 1991
• for Yamaha Super Jet 650 1992
• for Yamaha Super Jet 650 1993

On-The-Job Use

• Top-end rebuilds on worn Super Jet 650 engines
• Stock bore replacement without cylinder machining
• Restoring compression after piston or ring wear
• Personal watercraft seasonal maintenance

Specs At A Glance

Good To Know

Q: Does this piston need cylinder machining? A: No, a standard 77.00 mm bore piston is meant for a cylinder still at stock size without oversize boring.

Q: Is this a complete top-end kit? A: This listing covers the Wiseco piston kit as described, so verify your engine needs for rings, pin, and clips before installation.

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