When ignition timing is detected based on counting the number of position signals POS10 after the reference position signal REF, the ignition timing control signal is output to the power transistor in the ignition coil 9 and {HEAD ~ ignition timing} is controlled by {TAIL ~ the ignition plug} 6 
is controlled by
When ignition timing is detected based on counting the number of position signals POS10 after the reference position signal REF , the ignition timing control signal is output to the power transistor in the ignition coil 9 and { HEAD ~ ignition timing } is controlled by { TAIL ~ the ignition plug } 6
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH