Page 25 of 279 EMS-4 Install and Tuning Guide_Rev 1.6
Signal comparison
– before and after coil driver
DWELL
DWELL
FALLING
EDGE FIRE
5V
GND
IGNITION OUTPUT FROM EMS TO COIL DRIVER OR CDI
IGNITION OUTPUT AFTER COIL DRIVER
DWELL
DWELL
RISING EDGE
FIRE
12V
GND