I have a 1982 AM skier and have had an ongoing issue over the years, but hasn’t really happened in about 2 years until now. The boat will randomly not have any power. I charged the battery, had someone try to jump the battery on the lake, but nothing happened. I got the battery checked and the battery is good ( only a year old). I connected the battery yesterday and got power, started the boat and everything was fine. I disconnected it overnight so the perfect pass wouldn’t try to draw power from the battery. But this morning, no power at all. And I know the battery is good. Anyone know how to resolve this issue? I don’t want to be out of the lake and randomly have no power? Could it be a short somewhere? How would I check that? What would cause the boat to not have any power with a good battery?