I don’t see that resistor in the wiring diagram, but it just shows the ignition switch as 1 module, and it may be built in.
Wouldn’t surprise me.
Silly question: Did the bike ever run for sure way you got it?
If it did then you shouldn’t have to add new things to the mix, (like that resistor) but just find the piece that is not functioning, or the wiring that is off/broken.
If you are not sure if it ever did (hear it yourself) then that may be a problem.
Electrical problems can be a bear at times, when you know that it once worked, but if that is not known, then it can be like shooting in the dark.
If it hasn’t ever worked the way it is now, then I might suggest that you buy and ignition switch from ebay and put it all back to stock, get it running, and start from there with the removal of stuff, one thing at a time and try to run it at each change.