Originally Posted by kyle86
I just thought of something. My carburetor occasionally feels like it's getting air in the accelerator circuit at idle. It will hesitate, BUT if I give it a few revs in neutral, it kind of gets the air out, then I have a nice clean rev from there after. I've already replaced the acc pump diaphram, tightened down squirter nozzle, replace metering plate gasket. It usually only does it when the engine is cold and clears up after a while of driving. Think this could be related?
Could be, there should be a check valve in that circuit that keeps the fuel behind the nozzles from draining back to the pump chamber. It it's missing or failing, the passages of fuel will empty so the next time you use it you'll have to pump the accelerator till those passages fill before they will squirt into the air stream.