Namura .050 Over Bore Piston Kit for Yamaha PW50 fits 1981-2024 Models - 41.25mm
Namura .050 Over Bore Piston Kit for Yamaha PW50 fits 1981-2024 Models - 41.25mm
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Namura .050 Over Bore Piston Kit for Yamaha PW50 fits 1981-2024 Models - 41.25mm
This Namura .050 over bore piston kit is designed for Yamaha PW50 models from 1981-2024, featuring a 41.25mm piston diameter for oversize cylinder applications.
Overview
The Namura .050 over bore piston kit is intended for Yamaha PW50 engines that have been bored to the first oversize. It includes piston, rings, wrist pin, and circlips. This kit allows continued use of the engine after cylinder boring.
Built For Performance
- High-silicon aluminum alloy for lightweight durability
- .050 over bore size (41.25mm) for oversize cylinders
- Includes rings, wrist pin, and circlips
- Precision-machined for proper ring seal
- Direct replacement for OEM oversize pistons
Fits These Machines
- for Yamaha PW50 1981-2024
On-The-Job Use
- Youth motocross and trail riding
- Engine rebuilding after cylinder wear
- Performance restoration of classic PW50 models
Specs At A Glance
| Bore Size | .050 over (41.25mm) |
| Piston Size | .050 over |
| Kit Includes | Piston, rings, wrist pin, circlips |
Good To Know
Q: Do I need to measure the cylinder before ordering this oversize piston? A: Yes, measure the cylinder bore to confirm it has been machined to 41.25mm to ensure proper piston clearance.
Q: Can I use this piston with a standard bore cylinder? A: No, this piston requires the cylinder to be bored to the .050 over specification; it will not fit a standard bore.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.
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