SPI Standard Bore Piston Kit for Yamaha Exciter 570 / II EX570 1987-1993 73mm
SPI Standard Bore Piston Kit for Yamaha Exciter 570 / II EX570 1987-1993 73mm
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SPI Standard Bore Piston Kit for Yamaha
This SPI standard bore piston kit with a 73mm bore fits Yamaha Exciter 570 and Exciter II EX570 snowmobiles from 1987 to 1993, restoring compression and performance in two-stroke engines.
Overview
This piston kit is a direct replacement for the original pistons in Yamaha Exciter models, providing reliable sealing and power. The 73mm standard bore size matches factory specs for a straightforward rebuild.
Built For Performance
- Standard bore 73mm diameter
- Includes piston, rings, and wrist pin
- Precision-machined skirt for reduced friction
- High-strength aluminum alloy construction
- Compatible with stock cylinder bore
Fits These Machines
- for Yamaha Exciter 570 (1987-1993)
- for Yamaha Exciter II EX570 (1987-1993)
On-The-Job Use
- Snowmobile engine rebuilds
- Trail riding and recreational snowmobiling
- Engine performance restoration
- Winter maintenance and repair shops
Specs At A Glance
| Bore | 73mm |
| Type | Standard Bore Piston Kit |
| Brand | SPI |
| Application | Yamaha Exciter 570/II (1987-1993) |
Good To Know
Q: Do I need to hone the cylinder before installing this piston kit? A: Yes, honing is recommended to ensure proper ring seating and break-in.
Q: Can this kit be used with a stock exhaust? A: Yes, it is intended for standard bore applications and works with factory exhaust systems.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.
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