2 Sets Namura .010 Over Bore Hi Comp Piston Rings for Yamaha Banshee 350 64.25mm

2 Sets Hi Comp Piston Rings for Yamaha

These high compression piston ring sets are designed for Yamaha Banshee 350 engines, featuring a .010 over bore at 64.25mm to boost compression and performance.

Overview

These hi comp piston rings provide a .010 over bore size of 64.25mm for Yamaha Banshee 350 engines, increasing compression for more power. The two sets cover the twin-cylinder Banshee, restoring ring seal after overboring. Use these piston rings to enhance throttle response in your sport ATV.

Built For Performance

• High-compression ring design raises cylinder pressure for more torque
• Precision-ground to 64.25mm (.010 over) for a tight fit
• Ductile iron construction withstands high temperatures
• Each set includes top and second rings for one piston
• Two sets provided for complete Banshee 350 top-end rebuild

Fits These Machines

• for Yamaha Banshee 350

On-The-Job Use

• Rebuilding performance ATV engines for dunes and drag racing
• Replacing rings during a cylinder overbore to increase compression
• Restoring lost power in older Banshee 350 engines

Specs At A Glance

Good To Know

Q: Will these rings work with a stock Banshee cylinder? A: Only if the cylinder has been bored to 64.25mm; stock bore is 64mm, so overboring is required.

Q: Do I need to gap the rings before installation? A: Final ring gap should be checked and adjusted per service manual to ensure proper clearance.

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