VM28/486-45 Smoothbore jets, pilot 45

This Mikuni pilot jet is engineered for smoothbore carburetors, specifically designed to manage the fuel delivery during idle and low-throttle transitions. Precision-machined from brass, this size 45 jet provides the exact flow rate required for stable engine performance. On Harley-Davidson motorcycles upgraded with Mikuni HSR carburetors, the pilot jet is the first point of adjustment for solving off-the-line hesitation or erratic idling. Choosing genuine Mikuni parts ensures that the internal dimensions are accurate to the micron, maintaining the integrity of your tuning efforts. This jet is sold individually and is a necessary part for any rider performing a custom intake setup or seasonal re-jetting.