1995 Johnson Evinrude "EO" 9.9 thru 30, 2-Cylinder Service Manual, P/N 503146, Page 139Get this manual

1995 Johnson Evinrude "EO" 9.9 thru 30, 2-Cylinder Service Manual, P/N 503146, Page 139

Temperature Switch Test Purpose heat sensitive switch is installed in the cylinder head to monitor engine temperatureThe
from the cylinder head2Using continuity light or ohmmeter, make positive connections to the switchone lead to the switch
lead and one lead to the metal portion of the switchf41 3Place the switch and an accurate industrial thermometer in warm
automotive crankcase oil4Slowly increase the oil temperature using an external heat sourceTo avoid possible fire or explosion:
Use suitable container for the oil Use an oil that has flashpoint above 300 (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 fol lowsWire Color Tan TanRed Switch