Cylinder Piston Top End Kit for Honda CRF 125 F FB CRF125 Big Wheel 2014-2023

Cylinder Piston Top End Kit for Honda

This cylinder piston top end kit for Honda restores compression and power to compatible trail bikes by replacing worn cylinder, piston, and gasket components.

Overview

This cylinder piston top end kit is a comprehensive rebuild package designed to refresh the engine top end of compatible dirt bikes. Featuring a new cylinder sleeve, piston, rings, pin, and gaskets, this cylinder piston top end kit replaces worn-out components that cause power loss or oil burning. It is designed for mechanics and DIY riders performing routine top-end maintenance on their off-road motorcycles.

Built For Performance

• Precision-honed cast iron sleeve ensures proper oil retention and piston ring sealing.
• Lightweight aluminum piston minimizes reciprocating mass for smooth engine revving.
• Includes high-temperature gaskets to prevent oil and compression leaks.
• Engineered to meet factory dimensional clearances for reliable engine performance.

Fits These Machines

• for Honda CRF125F 2014-2023
• for Honda CRF125FB Big Wheel 2014-2023

On-The-Job Use

• Rebuilding a worn-out trail bike engine that has low compression.
• Restoring factory power levels after extensive hours of trail riding.
• Stopping exhaust smoke caused by worn piston rings or cylinder walls.

Specs At A Glance

Good To Know

Q: Do I need to gap the piston rings before installing this kit? A: Yes, always verify and adjust the piston ring end gap according to the factory service manual specifications before final assembly.

Q: Is a professional mechanic required to install this top end kit? A: While experienced DIYers with a service manual can complete the installation, professional assembly is recommended to ensure correct torque specs and timing alignment.

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