790M08250 Wiseco Piston for Yamaha Wave Runner Pro VXR 700 1993-1994 82.5mm

Wiseco .060 Piston for Yamaha Wave Runner Pro VXR 700

This Wiseco .060 overbore piston (790M08250, 82.5mm) is a forged replacement piston for the Yamaha Wave Runner Pro VXR 700, built to restore compression on a rebored cylinder.

Overview

This Wiseco .060 piston gives the Yamaha Wave Runner Pro VXR 700 a fresh top end after a cylinder has been bored to clean up wear or scoring. As a 790M08250 piston at 82.5mm, it suits the larger bore size the 700cc engine needs once stock clearances no longer hold. It is aimed at riders and shops rebuilding a 1993 to 1994 machine who want a durable forged piston rather than a stock-style casting.

Built For Performance

• Forged aluminum construction for high strength under heat and load
• 82.5mm diameter sized for a .060 overbore cylinder
• Wiseco 790M08250 part number for easy reference and ordering
• Designed to handle the sustained RPM of a personal watercraft engine
• Suits a rebuild where the cylinder has been machined past stock bore

Fits These Machines

• for Yamaha Wave Runner Pro VXR 700, 1993
• for Yamaha Wave Runner Pro VXR 700, 1994

On-The-Job Use

• Top end rebuild on a high-hour VXR 700 engine
• Repair after cylinder scoring or piston seizure
• Reassembly following a bore and hone to .060 over
• Fresh engine build for a season of recreational riding

Specs At A Glance

Good To Know

Q: Do I need to machine the cylinder for this piston? A: Yes, this piston is sized for a .060 overbore, so the cylinder must be bored and honed to match the 82.5mm diameter and the piston-to-wall clearance the maker specifies.

Q: Should I verify my model year before buying? A: Yes, this piston is listed for the 1993 and 1994 Yamaha Wave Runner Pro VXR 700, so confirm your hull and engine match 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.