Keihin 155 Main Universal JetRef : IH00155A / 1106212

KEIHIN main jet size 155, designed for tuning the carburetion on carburetors equipped with interchangeable jets. A simple and straightforward replacement part, aimed at motorcyclists looking to fine-tune the air-fuel mixture at full throttle and restore consistent carburetion after modification or wear.

• Designation: KEIHIN main jet 155
• Brand: KEIHIN
• Category: Jet
• Manufacturer reference: 99101-357-1550
• Usage: replacement of the main jet for specific richness adjustment (size 155)

The main jet regulates the amount of fuel admitted at wide open throttle; size 155 corresponds to a precise flow calibration. Ideal for tuning, tuning, or routine maintenance of Keihin carburetors, it installs in place of the existing jet. Before installation, check compatibility with your carburetor model and the required size to maintain appropriate carburetion for your engine.

Workshop tip: replace the jet when the engine is cold, clean the jet well, and check for any deposits. If in doubt, refer to the manufacturer's manual or have the carburetion checked by a specialized workshop.