Hi guys, I’m currently working on cleaning up some of the fuel system before I try to start my motor. I’m not sure how long the boat has been sitting, but my guess is a couple years. I drained the fuel from the fuel pump float bowl, and the fuel was Nasty. I removed the fuel pump and connected it to a 12v battery with jumper wires, and it did not spin. I continuously reversed the polarity and finally got it spinning. I tried to see if the pump would pump some sea foam cleaner through it, and put the fuel line in the can. But no matter which side of the pump is in the seafoam, or what polarity I try, it spins but pumps no fuel. Shouldn’t these pumps be able to pump fuel through itself, or does it only work in conjunction with the primer bulb and mechanical diaphragm pump? Any thoughts would be greatly appreciated!