For Yamaha Moto 4 YFM225 1986-1988 Cylinder Piston Gasket Top End Kit 70mm

Cylinder Piston Gasket Top End Kit for Yamaha

This cylinder piston gasket top end kit fits Yamaha Moto 4 YFM225 1986-1988 models and provides the cylinder, piston, ring, and gasket components needed for a 70mm top end rebuild.

Overview

This cylinder piston gasket top end kit is designed for the Yamaha Moto 4 YFM225 1986-1988 series and uses 70mm top end components. It contains the cylinder, piston, ring, and gasket parts needed to restore compression and reseal the top end after assembly.

Built For Performance

• Replacement top end kit sized for a 70mm cylinder bore.
• Includes cylinder, piston, ring, and gasket items for a Yamaha Moto 4 YFM225 top end assembly.
• Supplied for the 1986-1988 Yamaha Moto 4 YFM225 engine family.
• Provides sealing parts for the cylinder head and base during a rebuild.
• Allows the old top end to be restored with fresh compression sealing.

Fits These Machines

• for Yamaha Moto 4 YFM225 1986-1988

On-The-Job Use

• Rebuilding the top end of an older Yamaha Moto 4 YFM225 after low compression appears.
• Replacing the cylinder, piston, ring, and gasket components during a scheduled engine rebuild.
• Restoring off-road and utility operation on a Yamaha Moto 4 YFM225 with a worn top end.
• Resealing the cylinder area after the top end has been removed for inspection or machining.

Specs At A Glance

Good To Know

Q: What does this top end kit include? A: It includes the cylinder, piston, ring, and gasket components needed for a 70mm Yamaha Moto 4 YFM225 top end rebuild. Confirm the exact YFM225 model before ordering.

Q: Why is the 70mm bore size important? A: The 70mm bore size identifies the intended cylinder size for this Yamaha Moto 4 YFM225 top end kit. Match this measurement to the engine when checking compatibility.

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