
This part being universal, it may require adaptations
KEIHIN Main Jet 200 — an essential spare part for anyone working on carburation. Designed by KEIHIN and referenced N424-27200, this main jet of size 200 is aimed at motorcyclists and mechanics looking to fine-tune the air/fuel mixture on carburetors equipped for this diameter.
Whether you are preparing a motorcycle for the road, trail, or track use, this main jet allows you to adjust the carburation based on engine modifications, altitude, or operating conditions. It is the key element for correcting a mixture that is too lean or too rich when the diameter of the original jet needs to be changed.
Workshop tips: check the size of your current jet and compatibility with your Keihin carburetor before ordering. Carefully clean the jet holder and passages, use the appropriate tools, and carry out gradual tests and adjustments to find the ideal carburation. If in doubt, refer to the workshop manual or consult a specialist.