1985 OMC 65, 100 and 155 HP Models Commercial Service Repair manual, PN 507450-D, Page 146Get this manual

1985 OMC 65, 100 and 155 HP Models Commercial Service Repair manual, PN 507450-D, Page 146

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Ignition System Schematic
Ignition Coils SensorSensor #2 Sensor3

Since the capacitor is the "heart" of the ignition system, the key switch is used to prevent capacitor chargeOne end