Namura .020 Over Bore Piston Rings for Yamaha YZ250 & YZ250X 1999-2024 - 66.9mm
Namura .020 Over Bore Piston Rings for Yamaha YZ250 & YZ250X 1999-2024 - 66.9mm
FREE, Fast Shipping on all orders!
.020 Over Bore Piston Rings for for Yamaha
These Namura .020 Over Bore Piston Rings for for Yamaha provide improved compression and oil control for 66.9mm bore cylinder assemblies.
Overview
The Namura .020 Over Bore Piston Rings for for Yamaha restore engine compression and sealing in worn cylinder bores. Each .020 Over Bore Piston Rings for for Yamaha set includes rings designed to operate under high-stress conditions. Engine builders utilize these .020 Over Bore Piston Rings for for Yamaha to maintain performance after a cylinder bore service.
Built For Performance
- Hard-chrome plating for wear resistance
- Precise end-gap tolerances
- Reduced friction for improved efficiency
- Engineered for consistent heat dissipation
Fits These Machines
- for Yamaha YZ250
- for Yamaha YZ250X
On-The-Job Use
- Top-end engine rebuilds
- Restoring cylinder compression
- Routine piston maintenance
Specs At A Glance
| Bore Size | 66.9mm |
Good To Know
Q: Do these rings require honing the cylinder? A: A fresh hone is recommended to ensure the new rings seat correctly against the cylinder wall.
Q: How do I measure ring end gap? A: Place each ring in the cylinder bore square and use a feeler gauge to measure the gap according to service manual specifications.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.
Get it between -
