
This part being universal, it may require adaptations
The KEIHIN 138 jet is a replacement part designed for carburetion adjustments. Manufactured by KEIHIN, this component is installed in the carburetor to adjust the fuel flow and refine the air/fuel mixture during the preparation or maintenance of a carburetor. Whether you are looking to tweak the carburetion after an intake modification or simply replace a worn jet, this main jet allows for precise adjustments.
Installation and practical advice: replace the jet with a clean and dry carburetor, using appropriate tools to avoid damaging the head. Check the condition of the needle, seat, and circuits before making fine adjustments. Road tests and analysis of engine behavior will help adjust the jet size according to your riding needs.
Photo for illustration purposes only. Check compatibility with your Keihin carburetor or with your tuner before placing any orders.