In Picture 11 (my worst picture), the new bushing is on the shaft and shaft is in the hole.
In Picture 12 the bushing and shaft are seated. This took a little force, but it worked great!
In Picture 13 the carb is put back together and the old bushing is laying beside it.
There is no play in the shaft now. I installed the carb and went for a ride.
It ran without the choke. Carb fixed. Now we have to wait and see if it stands the test of time. I hope this will be able to help some of you gear heads out there! Not too bad for a scientist I must say.
Kevin