I have a 1983 Mariner 115 I picked up not too long ago as a trade for an old 14ft aluminum boat, as a hope to put this on a pontoon. The needle and seat were bad on the lower carb, so I replaced that and that fixed my fuel problem. When I tried to start it, it cranked twice and it stopped. It’s a new marine battery, and it was cranking the motor the day before when I tried starting it up for the first time before I found the fuel problem. But when I connect the trim pump (engine is on stand) that doesn’t work either. It seems as the electronics aren’t working. I also tried tapping the starter, that didn’t work.