
This part being universal, it may require adaptations
Replace or optimize the carburation of your machine with this KEIHIN main jet size 78. Designed by the Japanese specialist in injection and carburetors, this jet allows for fine adjustment of the fuel flow in the main circuit to achieve an air/fuel mixture suited to your carburetor settings.
An essential wear and adjustment part for carburation purists, this jet is aimed at motorcyclists and mechanics looking to calibrate the mixture at mid and full throttle. Ideal for tuning operations, replacement after wear, or adapting the machine to an engine preparation (modifications to intake, exhaust, or different altitude).
Practical tips: check the size of the original jet before installation, clean the seat and area of the carburetor, and make gradual adjustments while monitoring engine response. If you are not comfortable with carburation, entrust the intervention to a professional for precise tuning.