I have a 1984 140 vro evinrude. I recently was out on the boat when the bulb went completely compressed. I thought it may have been in the vent from the fuel tank but I put a piece of wire leader in there and it went all the way to what felt like a strainer of some sort. I then opened up the tank filler hole and that didn't really do anything either. Once the motor was stopped however the pressure equalized to where we could run a little longer. Then it would do it again. So I loosened the water seperator and that did the trick for a while but the problem still exist. Where else can I look on the fuel tank. Any info is appreciated...