Namura Standard Bore Piston Kit Size A 43.44mm for Yamaha YZ65 2018-2024 43.5mm

Namura Standard Bore Piston Kit for Yamaha YZ65 2018-2024

This Namura standard bore piston kit size A 43.44mm is designed for Yamaha YZ65 models from 2018 to 2024, providing reliable engine performance for off-road use.

Overview

This Namura standard bore piston kit for Yamaha YZ65 fits 2018-2024 models, delivering consistent power and durability for motocross riding. The kit includes a piston, rings, and pin for complete replacement. Ideal for rebuilding top ends, it helps restore compression and performance on the YZ65.

Built For Performance

• Cast from high-strength aluminum alloy for lightweight strength
• Precision-machined ring grooves for proper ring seal
• Includes wrist pin and circlips for complete installation
• Standard bore size A with 43.44mm diameter
• Designed to match OEM specifications for reliable fit

Fits These Machines

• for Yamaha YZ65 (2018-2024)

On-The-Job Use

• Motocross racing on dirt tracks
• Trail riding and off-road competition
• Top-end engine rebuilds for two-stroke maintenance

Specs At A Glance

Good To Know

Q: How can one confirm the correct piston size for a YZ65? A: Measure the cylinder bore or check the cylinder stamping; standard bore size A is 43.44mm for 2018-2024 YZ65.

Q: Is break-in required after installing this piston kit? A: Yes, moderate riding with varied throttle for the first hour is recommended to seat the rings properly.

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