Piston Cylinder Gasket Top End Kit for Honda CRF70F CT70 XR70R TRX70 Engine 70cc

Top End Rebuild Kit for Honda CRF70F CT70 XR70R TRX70

This piston cylinder gasket top end kit for Honda 70cc engines supplies the cylinder, piston, rings, and gaskets needed to refresh the top end of a worn single-cylinder motor and restore reliable compression.

Overview

This top end kit for Honda CRF70F, CT70, XR70R, and TRX70 models includes the cylinder, piston, and gasket set required to complete a rebuild in one purchase. The kit suits riders and mechanics servicing 70cc Honda engines that have lost compression or need a fresh piston and bore. Each component is sized to work together, simplifying the rebuild process.

Built For Performance

• Complete kit pairs the cylinder, piston, and gasket set for a matched rebuild
• Cylinder bore sized for 70cc Honda single-cylinder engines
• Piston and rings designed to restore lost compression
• Gasket set seals the cylinder-to-case and cylinder-to-head joints
• Components selected to fit without machining in most cases

Fits These Machines

• for Honda CRF70F
• for Honda CT70
• for Honda XR70R
• for Honda TRX70

On-The-Job Use

• Refreshing a tired 70cc engine during a top end rebuild
• Restoring lost compression on a trail or play bike
• Servicing ATV and mini bike engines that burn oil
• Mechanics and home wrenchers handling routine engine work

Specs At A Glance

Good To Know

Q: Do I need to machine the cylinder before installing this kit? A: Most top end kits are ready to install without machining, but checking bore clearance and ring end gap before assembly is always good practice.

Q: What else should I replace while doing a top end rebuild? A: Inspect the valve seals, cam chain, and timing components, and replace any worn parts so the fresh top end performs at its best.

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