1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 86Get this manual
3-31 ENGINE CONTROL SYSTEM
START- IN- GEAR PROTECTION SYSTEM
A switch to detect neutral gear position is located on the cylinder block (PORT side) and operated by the clutch control armThis ONOFF type switch is "ON" in neutral and "OFF" in forward or reverseOn starting the engine, the ECM detects the shift position using the neutral switchWhen the neutral switch is "OFF", the ECM does not send signal for injector operationThis neutral switch is also used to regulate the starter motor circuitThe engine will not start, even by emergency rope, with the shift in the forward or reverse positionSHIFT POSITION NEUTRAL SWITCH ON OFF OPERATION Fuel injector Yes No Ignition Yes Yes Fuel pump Yes Yes Starter motor Yes No