You can take that wire out of it and replace it. (The charge wire) it goes to the charge coil. You can try that because at this point it isn't going to matter if you mess it up. You really can't mess it up if your careful. Then check and see how many ohms that it is reading. LoOKs like you have two breaks in it from your picture . One where it bends and goes in by the plug wires. And one a little further up. Just follow it to the charge coil on the stator and see where you want to remove it at. Those wires seem to always be broke or have a bare spot. The wire looks pretty corrected where you were metering it at the break. It may not have had good contact for the meter lead.
There are 2 breaks in the coating. one at the base and another farther up. I agree with the wire looking very corroded at the lower break.
I chased the wire around to the back side of the 2 coils that supply a charge signal to the solid state and i have conductivity from the plug to that point. (Will post pics and more details later today).
You have to have a solid reading or it will never fire. You need to fix that wire. Should be around 137 ohms. When you get it fixed. And no your not a dummy . You were testing it right. Did you get another stator with your parts engine? If so you could check it and fix the better one it maybe cracked too but not as bad and keep the other for a spare
That parts machine was my first go to after i had no spark today. The stator on it will need cleaned up very well. But i tested it for a resistance reading from the charge lead to ground at the body of the stator like i have been and got no reading. but again, it was very dirty. ill take it off tomorrow and see what i can do with the 2 of them.