aaahh the old commanders ............ with electronic ignition kit.......... the EI requires min +8 volts to operate
thanks for the pic - as it appears the positive lead of the ei goes to the + terminal of the coil (red wire) and will assume the negative lead goes to the - terminal on the coil (black wire) - that is how 99.9% are installed and is per the instructions.
assuming all ignition components are in good operation condition - you need to ensure you are getting @ least +8v @ the positive terminal of the coil when in the key is in the "I" (ignition / run ) position, typically you'll have +12 in the start position - because...........
the start position typically bypasses the ballast resistor giving full battery voltage to the the coil for reliable starting, when in the run position the circuit goes through a ballast resistor reducing the voltage to the coil 2-4 volts from battery voltage - as the ballast resistor increases in temperature - the resistance increases - which decreases the voltage output........... and may cause the EI malfunction.
PCM and Indmar use a ceramic ballast resistor it is easily recognized and bypassed, the commander uses a ballast resistor wire - a wire wadded up, wrapped in tape and hidden in the wire harness - find it and either replace it with regular wire, cut it in half (half the length = half the resistance) or leave it alone and just remove the red EI wire from the positive coil post and find a suitable switched +12v source (switched = ONLY when ignition is ON)
splice it with the purple wire @ the carb electric choke If this is too much to swallow - bring to me
Dan T