Cylinder Piston Power Valve Kit for Yamaha GP 1200 2002

Cylinder Piston Power Valve Kit for Yamaha GP 1200

This cylinder, piston, and power valve kit is a rebuild solution for the Yamaha GP 1200 personal watercraft engine, restoring compression and top-end performance by replacing worn top-end components. The kit includes the cylinder, piston assembly, and power valve for a complete top-end refresh. It is intended for riders and mechanics rebuilding a Yamaha GP 1200 engine.

Overview

This cylinder, piston, and power valve kit is a top-end rebuild solution for the Yamaha GP 1200, bringing compression and performance back to a worn engine. The kit bundles the cylinder, piston, and power valve so a full top-end refresh can be completed in one go. It is built for PWC owners and mechanics servicing a Yamaha GP 1200.

Built For Performance

• Cylinder casting designed to match the Yamaha GP 1200 top end
• Piston assembly sized for the GP 1200 bore
• Power valve included for exhaust port timing control
• Complete kit reduces the need to source individual top-end parts
• Suited to rebuild and refresh work on a 2002 GP 1200 engine

Fits These Machines

• for Yamaha GP 1200 (2002)

On-The-Job Use

• Top-end rebuild after piston or cylinder wear
• Compression restoration on a high-hour GP 1200 engine
• Power valve service or replacement
• Pre-season engine refresh for a personal watercraft

Specs At A Glance

Good To Know

Q: Do I need to replace the piston and cylinder together? A: When cylinder wear or piston damage is present, replacing both as a matched set supports even sealing and consistent compression. Check bore condition before installation.

Q: Is the power valve included? A: Yes, this kit includes the power valve along with the cylinder and piston. Confirm the part matches your specific GP 1200 engine before ordering.

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