Had a twin engine boat 25 Mako go thru this. randomly ,one engine would shut down just like turning the key to off. Would always restart ,run for a day, week ,month and then just die. What we found was the wiring harness from merc was to short and a factory extention harness added
The factory downfall was leaving this plug in the bottom of the bilge. Plug got wet and was shorting out .
Outboards are shut off by grounding the ign pack ,not by removing 12v
The factory downfall was leaving this plug in the bottom of the bilge. Plug got wet and was shorting out .
Outboards are shut off by grounding the ign pack ,not by removing 12v

