An electronic switch is associated with {HEAD ~ each ignition coil} and has a trigger which responds to an applied trigger voltage to conduct and discharge the capacitor through {TAIL ~ the ignition coil} 
An electronic switch is associated with { HEAD ~ each ignition coil } and has a trigger which responds to an applied trigger voltage to conduct and discharge the capacitor through { TAIL ~ the ignition coil }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL