recently put this engine back together after its been sitting for months, due to me cleaning it and not feeling like putting it back together. I'm having some problems now though with starting and running it. It is extremely hard to keep fuel in the line for one, and after i prime it enough so that it reaches the carb, the fuel creeps right back into the tank after a few seconds... therefore not letting the engine run for very long. Another thing is that when i do sometimes get it to run for a while but remove the glow driver, the engine dies instantly. I know that the driver is not the problem as i charge it regurally nor are the glow plugs as i tried 5 different new ones on it. I'm thinking not everything is sealed or maybe the carb has just gone bonkers and i might have to get a new one, but want to check if theres anything else i can do before that. Any suggestions??

Dave