Cylinder Sleeve 78.00 mm for Sea-Doo GTX 650 1994-1995

Cylinder Sleeve for Sea-Doo

This 78.00 mm cylinder sleeve is a replacement bore liner for Sea-Doo GTX 650 watercraft engines, pressed into the cylinder to restore a worn or damaged bore surface.

Overview

This cylinder sleeve is a 78.00 mm bore liner made to fit Sea-Doo GTX 650 engines from 1994 to 1995, restoring the cylinder wall after wear, scoring, or seizure. As a cylinder sleeve for Sea-Doo watercraft, it gives engine builders a clean bore surface for new piston and ring fitment. The 78.00 mm cylinder sleeve suits top-end rebuilds on the GTX 650 platform.

Built For Performance

• 78.00 mm bore size for standard rebuild dimensions
• Replacement liner for a worn, scored, or seized cylinder
• Restores the cylinder wall for fresh piston and ring seating
• Pressed into the existing cylinder casting during a top-end rebuild
• Suited to watercraft two-stroke engine service work

Fits These Machines

• for Sea-Doo GTX 650, 1994-1995

On-The-Job Use

• Top-end rebuilds after a piston seizure or overheated cylinder
• Bore restoration when overboring is not the preferred route
• Shop work on older Sea-Doo 650 engines brought back into service

Specs At A Glance

Good To Know

Q: Does a cylinder sleeve need machining after installation? A: Yes, the sleeve is typically pressed in and then bored or honed to final size and chamfered at the ports. Have a machine shop check the fit before assembly.

Q: Can I fit a 78.00 mm sleeve to a worn cylinder? A: The cylinder casting must be sound and sized correctly to accept the sleeve, so measure the bore first. A cracked or badly damaged casting is not a good candidate.

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