Here's my problem. I can unload boat ,start it and go, but at times when I turn it off and try to start it again it's like the battery is dead, Turns over about 2 or 3 times then stops cranking. Let it sit for awhile and it cranks until it starts. will be fine for a couple weeks then out of the blue when I go to start it, it turns over 2 or 3 times and thats it. Any help ???
