Yesterday my motor would not start and since I had replaced the fuel filter I though that I might have disturbed some wiring. So, outcomes the meter and the manual and my neighbour pitched in as well. After 1 hour of trouble shooting and disscusion on were the problem might be my neighbour had a brilliant stroke of logic. He quickly disapeared and returned with the battery out of his boat. Hooked it up and quick as a flash it started no problem. Lesson learned is do all the simple stuff first. And dont have your radio contected directly to the battery...