Namura .060 Over Bore Top End Repair Kit fits Polaris 250 2-Stroke ATV's 73.5mm

Namura .060 Over Bore Top End Repair Kit for Polaris 250 2-Stroke ATV's 73.5mm

This top end repair kit rebuilds the cylinder and piston assembly for Polaris 250 2-stroke ATVs using a .060 overbore and 73.5mm piston, restoring lost compression and power.

Overview

The Namura .060 Over Bore Top End Repair Kit is a complete rebuild solution for Polaris 250 2-stroke ATV engines. It includes a precision-cast piston, rings, wrist pin, circlips, and gaskets sized for the 73.5mm overbore. This kit is engineered for riders needing to refresh a worn cylinder with a clean overbore cut.

Built For Performance

• Includes .060 overbore piston at 73.5mm diameter
• High-strength cast aluminum piston for durability
• Precision-machined ring set for optimal compression
• Includes wrist pin and circlips for secure installation
• Complete gasket set for a leak-free seal

Fits These Machines

• for Polaris 250 2-stroke ATVs

On-The-Job Use

• Rebuilding top end of a Polaris 250 2-stroke ATV engine
• Restoring compression and power after cylinder wear
• Performing an overbore repair to extend engine life
• Servicing trail or utility ATVs needing a top-end refresh

Specs At A Glance

Good To Know

Q: Does this kit include all necessary gaskets? A: Yes, the kit comes with a full gasket set for installation, however we recommend verifying fitment with your specific engine serial number before ordering.

Q: Can this kit be used on a standard bore cylinder? A: No, this kit is specifically designed for cylinders already bored .060 over; a standard bore cylinder would require the 72mm standard bore kit.

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