Thank you carbking. I could not understand the confusion. The carburetor fuel containment system works sorta like an old toilet fill system. The tank always contains the water until it is flushed. The fuel in the carburetor float bowl can never to back into the fuel feed line, the float pushes on the valve to prevent that. Even if the fuel level drops and the float is not pushing on that valve how do you think the fuel could then just climb up past that valve, and down that fuel line? Especially since there is a good distance that the fuel would have to jump to get there.
Now if your heating and evaporating the fuel then yeah it could disappear that way, or a hole or crack in the float bowl, pressure build up in the float bowl could force the fuel out, but those float bowl vents are not prone to allowing that.
I really don't understand what is going on and how a carburetor needs this constant fuel addition (priming) unless your in a very hot climate and the fuel is evaporating.
Last edited by Truckrolet; 01/16/2023 9:28 PM.
