Just try finding some one to rebuild a magneto today. I had to convert my WD to points ignition, so I needed a resistor to keep the points from burning constantly. I had also put a 12 volt alternator on to replace the stolen 6 volt generator.
I went to the parts store and asked for a resistor, one of the kids had no idea what I was talking about. The other one was involved in tractor pulling and knew what I wanted.
Seems like everybody has forgotten how to think without a computer.
Robert