SPI .020 Over Bore Top End Repair Kit for Yamaha SRV 540 SR-V 1982-1991 73.5mm

SPI .020 Over Bore Top End Repair Kit for Yamaha

This .020 over bore top end repair kit for Yamaha SRV 540 SR-V 1982-1991 includes pistons, rings, and gaskets with a 73.5mm bore size to restore engine compression and performance.

Overview

The SPI .020 over bore top end repair kit is engineered for rebuilding the cylinder top end on a Yamaha SRV 540 snowmobile engine. It brings the bore to 73.5mm, providing fresh piston and ring surfaces for renewed power and reliability. Riders restoring a 1982-1991 SRV 540 will find this .020 over bore kit a direct fit solution.

Built For Performance

• Includes precision-machined pistons matched to .020 over bore (73.5mm)
• Contains complete ring set for proper seal and compression
• Includes cylinder head gasket and base gasket for a full top end rebuild
• Wrist pin and circlips supplied for secure piston attachment
• Designed to meet OEM specifications for Yamaha SRV 540 engines

Fits These Machines

• for Yamaha SRV 540 (1982-1991)

On-The-Job Use

• Rebuilding the top end of a Yamaha SRV 540 snowmobile engine after wear or failure
• Restoring lost compression and improving engine idle and throttle response
• Performing a preventative power refresh before riding season
• Repairing a seized or scored cylinder from improper lubrication

Specs At A Glance

Good To Know

Q: Is a .020 over bore kit suitable for a stock cylinder? A: Yes, this kit is intended for a cylinder that has been bored .020 over standard size; always have a machine shop verify cylinder clearance before assembly.

Q: Does this kit include a cylinder? A: No, it includes only the top end components (pistons, rings, gaskets) for use with your existing cylinder after it is bored to 73.5mm.

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