2 SPI .020 Over Bore Piston Kits for Yamaha Ovation 340 fits 1989-2000 60.5mm

2 SPI .020 Over Bore Piston Kits for Yamaha

This set of two .020 over bore piston kits for Yamaha Ovation 340 snowmobiles replaces worn pistons to restore engine compression and performance for model years 1989 to 2000 with a 60.5mm bore size.

Overview

These 2 SPI .020 over bore piston kits are designed for Yamaha Ovation 340 snowmobiles, providing a precise 60.5mm bore to refresh cylinder performance. They are a direct replacement for the original pistons in 1989-2000 models, ensuring reliable operation and extended engine life. The kits include pistons, rings, and wrist pins for a complete rebuild.

Built For Performance

• Constructed from high-strength aluminum alloy for durability under high rpm
• Precision-machined .020 inch overbore to restore cylinder wall clearance
• Includes premium piston rings for optimal sealing and compression
• Wrist pins are heat-treated for fatigue resistance
• Designed to meet OEM specifications for fit and performance

Fits These Machines

• for Yamaha Ovation 340 (1989-2000)

On-The-Job Use

• Ideal for rebuilding snowmobile engines after piston wear or scoring
• Commonly used during top-end refresh or full engine overhaul
• Suitable for recreational and light racing applications
• Installed by mechanics and DIY enthusiasts for reliable winter operation

Specs At A Glance

Good To Know

Q: Are these piston kits compatible with stock cylinders? A: Yes, they are designed for cylinders that have been bored .020 oversize, so your cylinders must be machined to match before installation.

Q: Do the kits include everything needed for installation? A: Each kit includes the piston, rings, and wrist pin; however, you may need to purchase additional gaskets and seals separately.

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