RE: gas bag setup
The carb I'm using is a 644. When I used to have a plastic fuel tank there is used to be one line that would run to the carb and then one under the carb that would run back to the tank then from the tank out the side of boat. Since I have a 644 carb where does the fuel line attach to if I'm using a bag? The motor in the picture I attached is very similar to the engine I have you can see that on the bottom there is a black nipple and on the top a black nipple. The top one is the one I have always connected the incoming fuel line to and the bottom has always been the return line.