On one of my boats, the engine seems to have a hard time getting gas. After it idles for a minute or 2, it dies and the gas bulb is soft. The vents seem okay, but when I squeeze the bulb, gas leaks out around the connection from the gas line to the motor. Could that be the problem? I'm thinking about changing that connection out, but that might be normal, I have just never noticed it. Any ideas would be helpful. Thanks!!