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  1. L

    2007 Mercury Optimax 75 HP ELPT

    So update. I had bad diaphragms. The new ones they mercury provided did not give me the correct cranking pressures. So I now have a new fuel rail and the pressures are correct. Fuel is around 14-16 PSI over air and it’s around the 94psi range. So. I replaced the battery with one that has 1000...
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    2007 Mercury Optimax 75 HP ELPT

    Update: So I tested for spark and they are bright. I ran a separate fuel system to the boat and nothing. I did the fuel and air regulator tests and they were within the specifications of the manual. I took the boat to my friends house and he overlooked it with me. He noticed my battery was not...
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    2007 Mercury Optimax 75 HP ELPT

    Good afternoon all. I am having some issues with my boat and I am looking for the community to help me. The issue I am having is that my boat will not start. The engine will turn over but it will not catch. The issue has to be within the air system. The spark plugs are new. The boat has gas in...
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