Namura .060 Over Bore Piston Kit for Yamaha PW50 fits 1981-2024 Models - 41.5mm

Namura .060 Over Bore Piston Kit for Yamaha

This .060 over bore piston kit for Yamaha PW50 models from 1981-2024 is a 41.5mm diameter piston designed to restore engine compression and performance after cylinder boring.

Overview

This .060 over bore piston kit for Yamaha PW50 delivers a precise 41.5mm piston to revive your youth ATV's engine. Perfect for Yamaha PW50 owners needing a larger over bore piston kit to accommodate cylinder wear.

Built For Performance

• Precision-machined 41.5mm piston diameter for .060 over bore applications
• High-strength aluminum alloy for durability and heat resistance
• Includes piston rings, wrist pin, and circlips
• Designed to meet OEM specifications for smooth operation

Fits These Machines

• for Yamaha PW50 (1981-2024)

On-The-Job Use

• Trail riding and off-road adventures
• Youth motorcycle racing and training
• Engine rebuilds and restoration projects

Specs At A Glance

Good To Know

Q: Does this piston kit require cylinder boring? A: Yes, the cylinder must be bored to 41.5mm to accommodate this .060 over size piston kit.

Q: Are the piston rings pre-gapped? A: Rings are standard and may require end gap adjustment per engine specifications.

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