2009-2010 Suzuki DF70A DF80A DF90A Outboard Service Manual, Page 190Get this manual
1G-7 Fuel System:
High Pressure Fuel Pump Control System Description
To supply the optimum fuel amount, the ECM controls the fuel pump drive duty cycle, repeated "ON""OFF" signal, at specified rate (1 000 times second)Based on engine speed and battery voltage, the ECM determines the optimum duty cycle (repeating "ON" time rate within cycle) and sends this signal to the fuel pump
Z9J0111701003
CKP sensor: Informs ECM of engine speedBattery voltage Ignition switch: Informs ECM of "START" signalCylinder tempsensor: Informs ECM of cylinder temperatureI9J011170006-01