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I am trying to use a spare battery that I had laying around to power the radio when the motor is not running and use the regular battery to power the stereo when the boat is running. I have hooked up a switch for each batteries so I could switch between batteries. The only problem is that when...
So here is my problem,
I bought a 91 Rinker with a 4.3 Mercruiser last year and in the fall had the boat winterized at a local marina. They changed all the fluids and all that good stuff. The boat started right up no problems.
Now, I took it back for the summer run up and when I went to...