1995 Johnson/Evinrude Outboards 25, 35 3-Cylinder Service Manual, Page 110Get this manual
Function TestsS.L.OWThis ignition system incorporates the SLDWwarning system, which gradually limits engine speed to approximately 2500 RPM when one of the following conditions occur: Engine temperature exceeds 2400 (1160 C), on remote control models Oil level in the oil tank drops below predetermined levelThe SLD.Wwarning system depends on input from: The temperature switch tanblue lead for an engine overheat The no oil sender tanyellow lead for no oil in the oil tankTo resume normal operation after the SLDWwarning system has activated, the engine must be operated below 1500 RPM and: Engine temperature must cool to 20r (9r C), for an engine overheat Outboard lubricant must be added to the oil tank Temperature Switch 1Disconnect temperature switch tanblue lead2Install correct test propellerStart engine in test tank and run at 3500 RPM