Have a 49 1/2 with original 216. I was told when I got truck it was a 12 volt system. I do have alt instead of gen, no voltage regulater. Have been having trouble starting truck without having to prime first. I know that this is a mechanical problem, but I was trying to start without priming first and maybe held foot starter down too long because starter stopped and I cant get a single noise out of it now. What could I have possibly fried that would cause me to get nothing when I push starter, checked battery and it is charged. Thanks for any help with this problem.