2 SPI .020 Over Bore Piston Kits for Yamaha Exciter 570 1987-1993 Models 73.5mm

2 SPI .020 Over Bore Piston Kits for Yamaha Exciter 570 1987-1993 Models 73.5mm

These two .020 oversize piston kits are designed for Yamaha Exciter 570 snowmobile engines from 1987 to 1993, providing increased displacement and enhanced power output.

Overview

This pair of SPI .020 over bore piston kits is intended for rebuilding Yamaha Exciter 570 engines, delivering reliable performance and improved compression. Each kit includes a 73.5mm piston and rings, perfect for restoring or upgrading your snowmobile.

Built For Performance

• Oversized .020 bore for increased displacement
• Precision-machined 73.5mm piston profile
• High-strength aluminum alloy construction
• Includes piston rings for a complete rebuild
• Engineered for Yamaha Exciter 570 applications

Fits These Machines

• for Yamaha Exciter 570 (1987-1993)

On-The-Job Use

• Snowmobile engine rebuilds
• Performance upgrades for trail riding
• Restoration of classic Yamaha Exciter models
• Racing and high-output applications

Specs At A Glance

Good To Know

Q: Will these pistons fit a stock cylinder? A: Yes, these .020 over piston kits are designed for cylinders that have been bored to 73.5mm, typically after a cylinder rebore. Always confirm your cylinder bore size before ordering.

Q: What is included in each kit? A: Each kit contains one piston and one set of rings. The kit does not include wrist pins or circlips, which should be reused or sourced separately.

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