Namura .060 Over Bore Piston Kit for Kawasaki KFX90 fits 2007-2024 models 48.5mm

.060 Over Bore Piston Kit for Kawasaki

This .060 over bore piston kit provides a 48.5mm replacement piston for the Kawasaki KFX90 engine, restoring compression and performance in worn cylinders.

Overview

The .060 over bore piston kit from Namura is designed for the Kawasaki KFX90, offering a 48.5mm diameter piston that fits 2007-2024 models. This piston kit is ideal for rebuilding the engine to like-new condition, using oversized components to compensate for cylinder wear. The .060 over bore ensures a tight seal and improved power output.

Built For Performance

• Precision-machined 48.5mm piston from high-strength aluminum alloy
• .060 over bore sizing corrects worn cylinder walls
• Includes piston rings, wrist pin, and circlips for a complete replacement
• Designed for direct fit into the Kawasaki KFX90 without modification
• Heat-treated to withstand high operating temperatures

Fits These Machines

• for Kawasaki KFX90 (2007-2024)

On-The-Job Use

• Engine rebuilds for KFX90 ATVs experiencing loss of compression
• Performance restoration for off-road riding and recreation
• Replacement after cylinder scoring or piston seizure
• Budget-friendly alternative to OEM parts for older models

Specs At A Glance

Good To Know

Q: Do I need to re-hone the cylinder before installing this piston? A: Yes, always hone the cylinder to the correct cross-hatch pattern before installing a new piston to ensure proper ring seating and oil retention.

Q: What is the recommended break-in procedure? A: Follow a gentle break-in with varying throttle loads for the first hour of operation, avoiding sustained high RPM to allow the rings to seat properly.

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