Suzuki 2003-2007 DF60 DF70 Outboard Motors Service Manual, Page 67Get this manual
ENGINE CONTROL SYSTEM
FUEL PUMP CONTROL SYSTEM
OUTLINE To supply the optimum fuel amount, the ECM controls the fuel pump drive duty cycle, repeated ONOFF signal, at specified rate (1 000 times second)Based on engine speed and battery voltage, the ECM determines the optimum duty (repeating "ON" time rate within cycle) and sends this signal to the fuel pump
CKP sensor: Informs ECM of engine speedBattery voltage: Ignition switch: Informs ECM of "START" signalECM Signal FP Fuel pump
Battery charge coil Rectifierregulator 30A fuse Ignition switch Battery ECM main relay 15A fuse