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

There are drawings on the web that show both IGN 1 and IGN 2. Some that show the 5 pin ECU and dual ballast resistor too if required.
And since coil ground is controlled at the ECU, the ECU must be chassis grounded, ( also not shown ). Beyond that, I read a voltage drop somewhere. IGN 1 and 2 should show closer to 12 volts. The less you put in a ballast resistor the less you get out. 5.5 is too low for it to run right, if at all.

HaHa that's the hell of it. Run's great!
The voltages are taken at the coil and the brown wire splice. After the resistor.
Will check the ecu ground tonite. Thanks!