Just bought a 84 mod v side console with an 84 mercury 50 on it . Got it home and went to show my brother how the engine purr like a kitten , hooked the water muffs up turn the water on ( or so I thought ) and proceeded to turn the motor over . Turned it over , and it ran for about 3 secs , turned it over again and the same thing happened ... I continue to try and turn it over for about 15 sec and it wouldn't fire . Walked back to the motor and no water is goin to the muffs. I had hooked up the muffs to the wrong hose and didn't even check to make sure water was flowing . So I'm assuming I probably burned the impeller up , what do u guys think? I'm goin to check it when I get off work today , but my question is what else do I need to check?