7.4L Mercruiser 1991 Sea Ray 250

by Dan Myers

I left it sitting for the winter and I've got no power to any of the gauges, lights, etc. Will not turn over. I took both batteries to be charged and they came back OK.

It was suggested that there is a 90amp fuse, if tripped could kill everything but I only see a red button with a 50 on it, that can not be depressed at all. It is above the Mercathode unit.

Any ideas?

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