Yesterday I took the boat out and noticed the bulb didn't get firm when I tried to prime the fuel line. I could hear the gas rushing through the bulb, but it didn't get firm. I guess there's a leak somewhere in the hose... After a few turns of the key the engine started up. For what reason does it not get firm, and does it need fixed? (since the engine started anyway) What will happen if it is not fixed? Thanks!