Namura .060 Over Bore Top End Repair Kit for Honda Rincon 680 2006-2023 103.5mm

.060 Over Bore Top End Repair Kit for Honda Rincon 680

This Namura .060 over bore top end repair kit includes a piston, rings, pin, and circlips to restore engine compression and performance in your Honda Rincon 680.

Overview

Precision‑machined to 103.5mm bore size, this top end repair kit is engineered for Honda Rincon 680 models from 2006 to 2023. The kit contains everything needed to rebuild the cylinder after an overbore, restoring lost power and extending engine life. It is ideal for mechanics and riders tackling a top‑end overhaul on their Rincon.

Built For Performance

• Forged piston with precision‑cut ring grooves
• Molybdenum ring set for reduced friction
• Heat‑treated wrist pin and circlips included
• .060 over bore increases displacement slightly
• Namura's reputation for reliable aftermarket parts

Fits These Machines

• for Honda Rincon 680 (2006‑2023 models)

On‑The‑Job Use

• Engine rebuild after cylinder wear or scoring
• Restoring compression for better throttle response
• Improving reliability in high‑mileage ATVs
• Preparing a machine for heavy‑duty work or racing

Specs At A Glance

Good To Know

Q: Do I need to have the cylinder bored before installing this kit? A: Yes, this kit is for a .060 over bore, so the cylinder must be machined to 103.5mm by a qualified shop.

Q: Is there a break‑in procedure after installation? A: A proper break‑in period with varying throttle and oil changes is essential for ring seating; refer to the engine builder's guidelines.

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