
This part being universal, it may require adaptations
Harley Main Jet - KEIHIN
Manufacturer Reference: N424-27155
A replacement part dedicated to carburation, this KEIHIN main jet is aimed at riders concerned with precise air/fuel mixture adjustment. Designed to operate on the main part of the carburetor, it influences fuel supply during acceleration and at full throttle, where proper atomization is essential for consistent engine behavior.
Ideal for maintenance operations or during carburation adjustments, this jet integrates into carburetor tuning procedures. It is important to check compatibility with your motorcycle model before installation and to follow the manufacturer's or your tuner’s recommendations. Disassembling/cleaning the carburetor and checking the jets are part of the recommended maintenance practices to maintain a healthy engine response.
For installation, clean disassembly and the use of appropriate tools are advised. If in doubt, entrust the adjustment to a specialist to ensure safe carburation that conforms to your machine's specifications.