
This part being universal, it may require adaptations
KEIHIN Main Jet 135 — Replace or adjust the heart of the carburetor with this main jet of size #135, manufacturer reference 99101-357-1350. Designed by KEIHIN, this jet is aimed at motorcyclists who maintain or tune carburetors to achieve a suitable air/fuel mixture for their machine.
The main jet controls the fuel flow during medium to wide-open throttle. This component is essential during carburetor tuning or repair operations: wear replacement, fine-tuning the air/fuel ratio, or seasonal preparation. Easy to install for an experienced mechanic or a skilled DIYer, be sure to check the condition of other carburetor components (needle, float valve, float, filter) and follow the manufacturer's recommendations for tuning.
Sold individually, this KEIHIN jet allows you to maintain a part that meets original specifications. For precise carburetion operations, prefer gradual tuning and tests on the road or on a dynamometer under controlled conditions.