Description
The ProX Piston Kit for Yamaha 701 1.50 represents one of the largest common oversizes available for this engine, allowing experienced builders to rescue cylinders with significant wear or damage. At 1.50 mm over, careful evaluation of cylinder wall thickness and structural integrity is essential, but when suitable, this option can grant a well used ski a valuable new lease on life. ProX focuses on OEM style reliability even at this deeper overbore.
- 1.50 mm oversize piston kit for Yamaha 701 engines with heavily worn or previously serviced cylinders.
- Kit includes oversize piston, ring set, wrist pin, and circlips as a complete top end component group.
- Machined from a low expansion, low friction alloy on precise CNC equipment for stable performance.
- Intended for cylinders bored and honed to the 1.50 mm oversize, with clearances set to standard guidelines.
- Best suited to experienced riders and builders committed to extending the service life of a favorite ski.
With proper machining and assembly, this ProX kit can restore strong compression and smooth operation to a 701 engine that might otherwise require cylinder replacement. The ring package is tuned to seat correctly in a quality hone pattern, promoting reliable sealing over long hours of use. It is a cost effective path to keeping older, well loved skis active on the water.
Because of the larger overbore, the entire engine should be inspected thoroughly, including crankshaft, bearings, seals, and cases, and any weaknesses addressed. Replace gaskets, confirm cooling and oiling systems are functioning properly, and follow manufacturer torque and break in instructions. With this attention to detail, the ProX 1.50 mm oversize piston kit can help ensure that Yamaha 701 powered craft continue to deliver enjoyable, trustworthy performance.
