2009-2010 Suzuki DF70A DF80A DF90A Outboard Service Manual, Page 218Get this manual
1I-2 Starting System:
Starter Motor Operation Condition Description
The starter motor relay is controlled by the ECM The starter motor relay will only engage when the ignition switch is turned to the "START" position if the all of the following conditions are satisfied Lock plate is attached to emergency stop switch Neutral switch is in the "ON" position Engine is not already operating After returning the ignition key to the "ON" position from "START", the starter motor continues to run for seconds until engine startsNOTE If failure exists in the sub-battery cable or the 15 ampfuse in its circuit, the starter motor relay circuit will not function
Z9J0111901002
Control by Shift Position Sensor shift position sensor is installed on the clutch lever holder and detects the shift position as the clutch lever is interlocked with the SPS shaftThis sensor is variable resistor that changes resistance in accordance with the shift positionThe resistance changes (increasedecrease) the voltage signal output from the sensor to the ECMBased on the sensor voltage, the ECM calculates and detects shift positionWhen attempting to start the engine, the ECM does not provide an injector operating signal when shift lever ingear position is detected"Neutral" "Reverse" "Forward"