790M08400 Wiseco Piston for Yamaha Wave Venture 700 84mm .120

Wiseco .120 Piston for Yamaha Wave Venture 700

This Wiseco .120 oversize piston, part 790M08400 at 84 mm plus 3 mm, is a rebuild piston for the 1995-1998 Yamaha Wave Venture 700, restoring compression in bored or worn cylinders.

Overview

The Wiseco .120 Piston for Yamaha Wave Venture 700 is a forged oversize piston designed for the 700 cc two-stroke engine found in these watercraft. It supports rebuilds where the cylinder has been bored to accept a larger piston. This piston suits shops and riders refreshing 1995-1998 Wave Venture models.

Built For Performance

• Forged aluminum construction for durability under high heat and load
• Oversize 84 mm bore, 3 mm larger than standard
• Designed for cylinders bored to match the .120 oversize spec
• Machined for consistent ring seal and compression
• Built for two-stroke watercraft engine rebuilds

Fits These Machines

• for Yamaha Wave Venture 700 1995
• for Yamaha Wave Venture 700 1996
• for Yamaha Wave Venture 700 1997
• for Yamaha Wave Venture 700 1998

On-The-Job Use

• Rebuilds where the cylinder has been bored oversize
• Restoring compression after scoring or severe ring wear
• Shop-level engine refresh on 700 cc Yamaha watercraft
• Maintenance on older personal watercraft kept in regular use

Specs At A Glance

Good To Know

Q: Can I install this in a stock cylinder? A: No, this is a .120 oversize piston and requires the cylinder to be bored and honed to the matching dimension first. Q: Does it fit other 700 cc Yamaha watercraft? A: It is intended for the 1995-1998 Wave Venture 700, so verify your model and cylinder spec 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.