What Does Pilot Jet Do - It is responsible for providing the correct amount of fuel needed to start the engine, for idling, and for throttling up to around the first 20% of the throttle range. The main jet affects mixture at off idle all the way to wide open and takes over mixture of the afr at higher engine/intake tract airflow speeds. Controls fuel delivery in mid to top range of rpms. It affects mixture at idle and just off idle. This is the jet to check if your bike has trouble getting fuel when starting, has a rough idle or stalls at low rpms. The pilot jet is a brass jet located within the float bowl next to the main jet, and is the smaller of the two. The photo on the right shows three styles of pilot jet. An idle or pilot jet is a component of a carburetor. When the throttle is in the closed position, the pilot jet supplies fuel to the engine, keeping it running smoothly.
The pilot jet is a brass jet located within the float bowl next to the main jet, and is the smaller of the two. The photo on the right shows three styles of pilot jet. The main jet affects mixture at off idle all the way to wide open and takes over mixture of the afr at higher engine/intake tract airflow speeds. When the throttle is in the closed position, the pilot jet supplies fuel to the engine, keeping it running smoothly. This is the jet to check if your bike has trouble getting fuel when starting, has a rough idle or stalls at low rpms. An idle or pilot jet is a component of a carburetor. It is responsible for providing the correct amount of fuel needed to start the engine, for idling, and for throttling up to around the first 20% of the throttle range. Controls fuel delivery in mid to top range of rpms. It affects mixture at idle and just off idle.