1996 Johnson Evinrude "ED" 40 thru 55 2-Cylinder Service Manual, P/N 507124, Page 142Get this manual

1996 Johnson Evinrude "ED" 40 thru 55 2-Cylinder Service Manual, P/N 507124, Page 142

Temperature Switch Test Purpose heat sensitive switch is installed in the cylinder head to monitor engine temperatureThis
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 []] 3Place the switch and an accurate industrial thermometer in warm automotive
crankcase oil 4Slowly increase the oil temperature using an external heat source 11 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 source5The switch must react to the changing temperature as follows: Wire Color Tan TanBlue Switch