790M08100 Wiseco Std Piston for Yamaha Wave Venture XL700 81mm

Wiseco Std Piston for Yamaha Wave Venture XL700

This Wiseco standard bore piston, part number 790M08100, is an 81 mm replacement piston engineered for the Yamaha Wave Venture XL700 and restores proper compression in the 701cc two-stroke engine.

Overview

This 81 mm Wiseco piston for Yamaha Wave Venture XL700 personal watercraft is a standard bore replacement designed to restore top-end compression and reliable combustion. It suits riders rebuilding a worn or scored top end on a 2002 Wave Venture XL700. Each piston is built for the demands of marine two-stroke operation.

Built For Performance

• 81 mm standard bore sizing for a direct-fit rebuild
• Forged aluminum construction for strength under heat and load
• Precision-machined skirt and ring grooves for a consistent seal
• Wiseco part number 790M08100 for easy cross-reference
• Suited to two-stroke marine duty cycles

Fits These Machines

• for Yamaha Wave Venture XL700, 2002

On-The-Job Use

• Top-end rebuilds on the 701cc Yamaha marine engine
• Restoring compression on a high-hours Wave Venture XL700
• Replacing a scored or worn standard bore piston
• Seasonal maintenance teardowns and freshen-ups

Specs At A Glance

Good To Know

Q: Do I need to bore the cylinder to fit this piston? A: This is a standard 81 mm piston, so it fits a cylinder already at standard bore that measures within spec. If the bore is scored or out of tolerance, machining or a replacement cylinder is needed.

Q: Can I replace just one piston? A: It is generally best practice to rebuild all cylinders in the top end together so compression stays balanced. Confirm your engine configuration and piston count before ordering.

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