I have a 1975 75hp Johnson motor, to hook the hose to it the motor runs fine but as soon as you get it in the water when you first take off its fine and then it starts dying down spitting and sputtering and loses power and won't go fast, replaced the fuel pump, checked the plugs they were fine, had a damaged wire on the regulator and put black tape on it just in case that was the problem, but its still won't perform in the water, used it some last year and it was fine, also the motor once we got it in the water for some reason started raising up on its own and came out of the water,,,odd. Now also the ignition needs to be replaced cause the one that had it before had broke the key in it and it cranks it but can fall out easy, but I don't forsee it causing the problem that were having with it now, can you help me figure this out? Oh and one more thing one of the gas hoses had a leak in it and I fixed it so there are no leaks.
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