1973 Scamp won't start in start only in run. With a Twist....

Resistance isn't everything. You could cut every strand of wire except one, of that blue wire, at the coil and ,have still as good as no resistance measureable, yet when you try to pull some electrons thru it ........nada.
Understood. Just checking everything I can think to check. And just to be clear on a 1973 Plymouth it's a brown wire at the coil+. Thanks.