Naraku Cylinder Kit - Kymco Heroism 50

This is a 'lightly tuned' 50cc cylinder kit. It offers a noticeable improvement over a stock or worn-out cylinder, providing better acceleration and response, but it is not designed for extreme racing applications.

No, this kit is designed to retain your original cylinder head, simplifying the installation process and reducing overall cost.

The cylinder is made from robust cast iron, known for its durability and heat resistance.

This kit is specifically for the Kymco Heroism 50 models from 1998 to 1999 with air-cooled engines.

Yes, the delivery includes a complete gasket set required for the installation.

It is highly recommended to check and potentially adjust your carburetor's jetting after installing this cylinder kit to ensure optimal performance and engine health.

Yes, it serves as a good alternative to the original cylinder, offering similar displacement with potential for light performance enhancements.

Check carburetor jetting. The engine may require a slightly larger main jet to compensate for the improved airflow. Ensure there are no air leaks around the cylinder base or head gasket.

Verify the spark plug is correctly gapped and clean. Ensure the carburetor is properly cleaned and adjusted. Check for any vacuum leaks in the intake system.

Ensure the mating surfaces on the crankcase and cylinder are perfectly clean and free of debris. Gently align the piston and cylinder before attempting to slide it down. Do not force the cylinder.

Check for proper oil levels and quality. Ensure the cooling fins on the cylinder are clean and free of obstructions. Verify the air-fuel mixture is correct (not running too lean).