Description
The ProX Piston Kit for Sea Doo 785 1.50 is a large oversize piston designed for engines that require extensive cylinder cleanup after heavy use, prior rebuilds, or more serious damage. A 1.50 mm overbore is typically chosen in later stages of an engines life when smaller oversizes can no longer produce a round, straight bore. ProX builds this kit to match OEM style quality so that even substantial rebuilds can deliver dependable results.
- 1.50 mm oversize piston kit for Sea Doo 785 engines needing a major overbore due to wear or damage.
- Kit comes complete with oversize piston, ring pack, wrist pin, and circlips for a cohesive top end solution.
- Machined from a low expansion, low friction alloy on advanced CNC equipment to maintain tight dimensional control.
- Designed to run at clearances similar to OEM guidelines when the cylinder is correctly bored and honed to the oversize.
- Well suited for riders committed to extending the service life of a favorite 785 powered ski.
With a large overbore, it becomes essential to verify that adequate cylinder wall thickness remains and that all other engine components are in sound condition. When these factors are met, the ProX 1.50 mm piston and ring set can re establish strong compression, reduce blow by, and support smoother running across the rpm range. Riders can regain confidence in their machines performance even after a more involved rebuild.
Careful measurement of bore dimensions, ring gaps, and piston to wall clearance, along with thorough cleaning and inspection, are mandatory. Replace worn bearings and seals, check crankshaft true, and follow recommended torque and break in procedures. With attention to detail, this ProX oversize kit can help Sea Doo 785 engines continue delivering fun and reliable service on the water.
