As the world turns...continued.

I cleaned all electrical contacts with contact cleaner. I re-ran all the wires, and all looks well. The antenna wire looks secure on the circuit board as well.

However, with a new crystal, and all clean contacts, I still have the same problem.
I decided to remove the engine to check bearings. I found something interesting.

The clutch bell on the ZXX is on a hollow shaft with a gear to start the engine. The hollow shaft has "play" in it relative to the bell. It can turn about 1.5 mm back and forth.

Is there supposed to be any "play" in that hollow shaft? If not, can I green locktite it? Any help would be appreciated.

Thank you.....jster