Thank you for all of your help. Got the correct belt in today so I took the motor and the fabricated motor mount off and put it back all back to the original position. Put belt on, carefully tightned the mounts and made sure it was all lined up close as i could get it. Took it for a spin and wow what a difference.
After my test drive, I did end up moving the driven green spring back to hole #1 because it wasn't really opening up to allow top speed unless i was heading downhill. This seems to help let it open up easier and get to top speed quicker. My daughter now loves her buggy. in fact she ran it till it ran out of gas today smiling all the way, and no visible or audible problems detected. Thanks again.
Paul