Namura .020 Over Bore Piston Rings for Yamaha Blaster 200 fits 1988-2006 66.5mm

Over Bore Piston Rings for for Yamaha

These .020 over bore piston rings for for Yamaha are designed to provide a perfect seal for cylinders that have been bored to 66.5mm. Using these .020 over bore piston rings for for Yamaha ensures proper compression and engine longevity following a top-end overhaul.

Overview

When you refresh your engine with an over-bore, these .020 over bore piston rings for for Yamaha are the correct size to restore power. These .020 over bore piston rings for for Yamaha are constructed to endure high performance demands while maintaining tight tolerances within the cylinder. They are designed for mechanics performing a full cylinder re-bore and rebuild.

Built For Performance

• Engineered specifically for 66.5mm bore
• Maintains consistent cylinder wall contact
• High-tension design for reduced blow-by
• Durable materials for extended rebuild intervals

Fits These Machines

• for Yamaha Blaster 200 1988-2006

On-The-Job Use

• Top-end engine rebuilds
• Correcting loss of compression
• Improving throttle responsiveness after bore work

Specs At A Glance

Good To Know

Q: What is the importance of the ring gap? A: The ring gap must be checked against the manual to ensure there is enough space for thermal expansion.

Q: Are these for stock bore cylinders? A: No, these are oversized rings specifically for cylinders that have been machined to .020 over.

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