Namura .020 Over Bore Piston Rings for Yamaha Banshee 350 fits 1987-2006 64.5mm

.020 Over Bore Piston Rings for for Yamaha

These .020 over bore piston rings for for Yamaha are designed to restore cylinder pressure and oil control in a bored-out engine, size 64.5mm.

Overview

The .020 over bore piston rings for for Yamaha provide the necessary seal for a refreshed engine block. These .020 over bore piston rings for for Yamaha ensure that the combustion gases remain above the piston for peak power. This set is designed for engine builders performing top-end overhauls on two-stroke engines.

Built For Performance

• Designed for precise fit in 64.5mm bores.
• Chrome or nitrided finish for reduced friction.
• Engineered to maintain pressure at high operating speeds.
• Resistant to thermal expansion stress.

Fits These Machines

• for Yamaha Banshee 350 1987-2006

On-The-Job Use

• Top-end engine rebuilds after cylinder boring.
• Restoring compression for consistent power delivery.
• Maintenance for high-performance two-stroke engines.

Specs At A Glance

Good To Know

Q: Do I need to file-fit these rings? A: Always check the end gap in the cylinder and file if necessary to meet the clearance specifications in your repair manual.

Q: Are these rings compatible with any piston? A: These rings are intended for use with pistons designed for the 64.5mm bore size; verify your piston type before installation.

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