@Chuck Sartor Thanks Chuck...I did some more investigating and I think the shims go in the back of the motor. Since it was remotored back in the 90's, no idea if this was the correct motor or not...but I think this levels it a little. While I was moving the engine around a wire broke a solder joint from the motor to the center solder joint "junction". Just for fun, I powered it and the motor worked again. The engine is running...seems to run better in reverse than forward, but I can work with that. Now the headlight isn't working.
I may rewire everything eventually. Thoughts?
Here is a picture of the wire that broke and where it was attached when it broke. Thanks guys!