1996 Johnson/Evinrude Outboards 50 thru 70 3-Cylinder Service Manual, Page 123Get this manual
DR4137 DR4138
S.L.OWarning System
This ignition system incorporates the 5.L.DWTM warning system, which gradually limits engine speed to approximately 2500 RPM when engine temperature exceeds 240 (1160 C)To resume normal operation after the 5.L.0Wsystem has activated, allow the engine to cool to 20]0 (9JD C) and turn it offThe 5.L.0Wsystem depends on input from the temperature switch tanblue leadFunctional Test 1Disconnect temperature switch connection2Install correct test propellerStart engine in test tank and run at 3500 RPM3Attach the engine harness tan lead to clean engine ground Engine must slow to approximately 2500 RPM4Stop the engine If engine speed reduced in Step 3, test the temperature switchRefer to Temperature Switch Test, Section If engine speed did not reduce in Step 3, continue with this procedure5Separate 5-pin Amphenol connector between the stator assembly and power pack