
This part being universal, it may require adaptations
KEIHIN Main Jet 68 — manufacturer reference 99101-116-0680. Main jet designed for the fuel circuit, made by KEIHIN. Designed to replace the original jet in compatible carburetors, it allows for the adjustment of fuel flow to fine-tune the air/fuel mixture during carburetion tuning.
This main jet, stamped "68", fits into the designated opening of the carburetor to define the maximum fuel flow in the main circuit. Its presence is essential for achieving a consistent and reproducible carburetion setting during testing and machine tuning. Ideal for riders attentive to engine behavior, it is suitable for maintenance or restoration operations of the fuel system.
Before installing this jet, check compatibility with your carburetor and follow the manufacturer's recommendations for the motorcycle. Carefully clean the seat and the jet opening before installation to avoid any blockage. If in doubt about the adjustment, entrust the operation to a professional or a qualified workshop to ensure stable and safe carburetion.