A little more information. I have a fresh rebuild of the carburetor by a guy who has been doing it for over 50 years. I have a brand new mechanical pump (Carter). If I pump the gas pedal and crank it long enough it will eventually get gas into the carburetor and start. Being a 6v system the brand new 6v battery does not like to crank and crank the engine. It is a race to see if it starts before I drain the battery. Yes, I have a fuel filter between the fuel pump and the carburetor. I have seen this set up on countless vehicles. I am not sure how this is impacting things. The glass bowl on my mechanical fuel pump stays full of gas. The fuel level in the filter in front of the carburetor is very low after a couple days. I was expecting to see fuel pump into the filter with the electric fuel pump running. That would make it readily available to pump fuel into the carburetor with just a couple pumps of the accelerator. I will pull the output connection and run the pump to see if it is pushing fuel. I have another pump I can try if it is not.

Last edited by dgrinnan; 03/07/2023 6:56 PM.

Dave from Northern Kentucky
My 54 3100