Namura Standard Bore Size C Top End Repair Kit for Yamaha YZ450F 2010-2013 97mm

Namura Standard Bore Size C Top End Repair Kit for Yamaha

This top end repair kit from Namura includes a 97mm standard bore size C piston, rings, wrist pin, and gaskets for rebuilding the cylinder of Yamaha YZ450F models from 2010 to 2013.

Overview

The Namura Standard Bore Size C Top End Repair Kit provides all necessary components for a complete cylinder rebuild on Yamaha YZ450F engines. It includes a cast piston with a 97mm bore diameter, designed to meet factory specifications for reliable performance. This kit is an affordable alternative for restoring compression and power.

Built For Performance

• 97mm standard bore piston with size C clearance for precise fit
• Includes piston rings, wrist pin, circlips, and top end gasket set
• Cast piston construction for durability and thermal stability
• Compatible with 2010-2013 Yamaha YZ450F engines
• Rings pre-gapped for easier installation

Fits These Machines

• for Yamaha YZ450F 2010-2013

On-The-Job Use

• Motocross and off-road racing
• Rebuilding worn top ends to restore engine performance
• Track day maintenance and engine refurbishment
• Competition and recreational riding requiring reliable power

Specs At A Glance

Good To Know

Q: Is this kit compatible with a 2012 YZ450F? A: Yes, the Namura top end kit fits all Yamaha YZ450F models from 2010 through 2013, including the 2012.

Q: Do I need to rebore the cylinder or is it a direct fit? A: This kit uses a standard bore size C piston for a cylinder within factory spec; if your cylinder is worn beyond tolerance, you may need to have it honed or reconditioned.

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