I own a old force motor 50 hp probably 1974. The motor came on a eldocraft boat that i recently purchased for $1000. After first purchasing the motor I tried starting the motor and it worked fine other than it needed a carb job, I went back out to the motor around a week later to do some facial work and tried to start it and nothing happened other than a noticeable click. I changed the cellonoid and it again was working fine. Not 2 days later I ran into another problem when I try to start the motor nothing happens no click no anything. The motor is getting power because it chokes when i push in the key. I used to be able to directly hook jumper cables to the starter and it would start after a few tries, however, now it wont even do that, still gets power and when I try the starter it "pops up" for lack of the technical term but only turns the motor head once and very slowly repeats. I have no idea what it could be. Any help on info on this boat motor and my problem would be very greatly appreciated.