Namura .100 Over Bore Hi Comp Top End Repair Kit for Yamaha Banshee 350 66.55mm

Top End Repair Kit for Yamaha Banshee 350

This Namura high-compression top end repair kit features a .100 over bore piston at 66.55mm, designed for Yamaha Banshee 350 engines to restore compression and power.

Overview

This top end repair kit from Namura includes a .100 over bore piston and rings for Yamaha Banshee 350, delivering high compression for improved performance. The 66.55mm piston size allows a fresh bore on worn cylinders, restoring engine reliability.

Built For Performance

• High compression piston increases horsepower and torque
• .100 over bore (66.55mm) matches common oversize cylinder reconditioning
• Complete kit includes piston, rings, wrist pin, and circlips
• Namura quality components ensure long service life
• Designed for Yamaha Banshee 350 engine specifications

Fits These Machines

• for Yamaha Banshee 350

On-The-Job Use

• Dune riding and sand racing
• Motocross and off-road competition
• Engine rebuilds for performance applications
• Trail riding requiring reliable top end power

Specs At A Glance

Good To Know

Q: Do I need to replace the cylinder or just re-bore? A: This kit is meant for re-boring an existing cylinder to the .100 over size, provided the cylinder is within serviceable limits.

Q: Is the piston ready to install out of the box? A: Yes, the piston comes pre-assembled with rings; you will need to ensure proper clearance and follow manufacturer torque specs.

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