I have a 1984 Suzuki DT75 that I cannot get the fuel pump to work. I have replaced the diaphragms but fuel just barely sprinkles out when cranking it over. The o-rings that connect it to the engine are in good condition. The motor has an electric primer bulb, and fuel comes out no problem when I turn it on. Here is a picture of the fuel pump, I am not sure what the arrows mean, but it seems the pump only goes together one way.
