Ken, I know it is getting spark and fuel. I have a new 330 CCA Diehard fully charged. Engine spins freely. When I turn the key to start, all I get is a click. I turn the S/G by hand 1/4 turn, then try again. Bingo, she motors. But if I stop and try again, all I get is the click again. I'm thinking brushes here. Because the S/G will motor but only 1/2 of the time. If I get it to motor enough, engine will start. Are these enough clues? Thanks.