Quote Originally Posted by BillBoost37 View Post
I'd say you have a good chance. The motor is moving better with the balancer off. The balancer looks like a second keyway was attempted to be made into it. Very likely the timing of the spark was off which caused the occasional backfire and no start.
^What he said.

We had that problem with a guys car and it drove us batty for 6 months litterally until finally someone suggested looking at the balancer. Sure enough, it was driven on with the key and slot not lined up.