dvrmarch is correct. The original wiring has 2 wires going to the +coil. One (yellow) comes up from the starter solenoid to provide 12v during 'start'. The other (pink/black) comes from the fusebox thru the harness to provide reduced voltage during 'run'. (my wires dont match those colors anymore.)
it looks like you have power to the coil during 'start', but no power to the coil during 'run'... likely due to faulty wiring, or possibly a bad ign. switch.
check the coil+ with a test light or voltmeter with the ign switch in 'run'. it should have power. if not, make sure the harness wire is connected and getting power.