Isn't the high voltage box on fire?
1 Check the wiring. Wiring in old cars is messy and sometimes deteriorates
2 Check if the igniter is working normally
3. The trigger is normal. Generally speaking, this is a circuit fault. Sometimes it is connected in series with other wires. If that doesn't work, remove both ignition wires separately. is normal, it means the original ignition wires have been connected in series.