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  1. M

    1978 Mercury 4.5 HP Won't stay running (WITH PICTURES)

    I recently acquired another motor for $150. It is a 1978 Mercury 4.5 HP. When I received it the fuel pump (which appears to be a replacement) did not have the vacuum pulse line connected from the block to the pump. Also the vacuum pump itself had been shoved down onto the back of the kill...
  2. M

    1958 Johnson Seahorse 5.5 HP Overheating (WITH PICTURES!!!)

    In the instructions to tune-up my motor I am following it says, "You should also be able to touch the cylinder head and crankcase with your fingers and not get burnt." This is not the case for me. I just replaced the impeller and cleaned out the water passages throughout the entire motor and I...
  3. M

    1958 Johnson Seahorse 5 1/2 HP Tune Up

    I am new to the forum and outboards in general. I have always wanted to learn more about engines and also was looking for a cheap way to have fun with the wife and kids on the Weeki Wachee River near my home. I found a 9ft Seaworthy inflatable for $100 and a 1958 Johnson Seahorse 5 1/2 HP...
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