1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 78Get this manual
3-23 ENGINE CONTROL SYSTEM
LOW OIL PRESSURE CAUTION SYSTEM
CONDITIONImmediate activation of system when the oil pressure switch turns "ON" due to an engine oil pressure drop below 100 kPa1.0 kgcm2, 14 psiACTIONEngine speed Caution lamp Automatically reduced to approx3000 rmin by intermittent fuel injection signal if the system is activated at 3000 rmin or higher" OILlamp lights continuously" REV-LIMITlamp lights continuously during engine speed rev-limiter activation