Thanks for your attention.
I'm sorting a basketcase NC50, and when I did the electrical checks, I found no continuity in the rectifier and the spark plug coil cable (the black/white wire test worked).
When I checked the continuity of the alternator wires, there is continuity through the black/white wire but not through the yellow or white wires. Do I conclude that the alternator is toast?
I also noted in the shop manual to never turn the flywheel clockwise. If that was done, would it have burned out the components?