1994 Johnson/Evinrude Outboards 40 thru 55 Service Manual, Page 149Get this manual

1994 Johnson/Evinrude Outboards 40 thru 55 Service Manual, Page 149

Temperature Switch Test Purpose heat sensitive switch is installed in the cylinder head to monitor engine temperatureThis
from the cylinder head 2Using continuity light or ohmmeter, make positive connections to the switchone lead to the switch
lead and one lead to the metal portion of the switch '6l 3Place the switch and an accurate industrial thermometer in warm
automotive crankcase oil 4Slowly increase the oil temperature using an external heat source& To avoid possible fire or explosion:
Use suitable container for the oil Use oil that has flashpoint above 3000 (1500 C), such as OMC Cobra 4-Cyce Motor Oil Do
not use open flame as heat source824063 5The switch must react to the changing temperature as follows: Wire Color Tan Switch