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    Start and run Mercury 5.7 on stand

    Originally I was just looking for wiring info to get on the right track, but figured I’d better give the rest of story since we were discussing it a little deeper. It was fresh water and yes most connectors are sealed connections and look to be dry and no corrosion or signs of water intrusion...
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    Start and run Mercury 5.7 on stand

    I have 4 fuses they are good. When power is connected 2 of them are hot the other 2 not. I’ve heard MPR click a couple times when powered but not every time. I don’t have power to fuel pump, it’s never cycled when power applied. It it does work because I have connected power straight to it and...
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    Start and run Mercury 5.7 on stand

    No. Just ground it to engine block?
  4. B

    Start and run Mercury 5.7 on stand

    Have a mercury 350 mag mpi out of boat for some work. Would like to fire up motor on stand before stuffing it back in its hole to make sure all is well because it's a pain to work on in boat. Looking for info on what wires need to be connected to fire it up. Has 14 pin harness connector. I know...
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