A picture is worth a thousand words.
This schematic has been around for a while.
Anyway - According to this, you should be able to just unplug the two wire connector from the Duraspark Box and check the connections at the Harness Side (not the Duraspark Module).
Check #1: The red wire should be "hot" when you have the ignition in the "RUN" position.
Check #2: The white wire should be "hot" when you are cranking the engine. According to what I read - the white wire is the Ignition Retard for ease of cranking.
OOPS - this schematic shows a ballast resistor!
CAVEAT: The schematic I attached is for the "Blue" Strain Relief module. Not sure what the difference is between the green module, but I would think the function of the Red and White wires would be the same.
