
This part being universal, it may require adaptations
KEIHIN Main Jet 80 – Manufacturer reference: 99101-357-0800
Original Keihin part designed for carburetion adjustment, this main jet number 80 allows for the adjustment of fuel flow in Keihin carburetors. Essential for those working on carburetor mapping, it is aimed at riders who are concerned with precise air/fuel mixture tuning.
Usage: replaces the existing main jet to modify the flow at wide open throttle. Ideal for jetting operations following a change of exhaust, air filter, or during altitude/climate alterations. Easy to install on compatible carburetors; follow manufacturer recommendations and check ignition and needle and float settings after installation.
Practical tips: always carry a set of jets during a long road trip or track day to quickly adapt the carburetion. If in doubt, have the verification done by a tuner or a specialized workshop.