1990 Johnson Evinrude 120 thru 140, 185 thru 225, 300 HP, P/N 507875, Page 154Get this manual
Sensor Coil Ohmmeter Test ote All ohmmeter tests must be performed with engine not running Q)
r;;;l 1Before proceeding, you must verify that the ohmmeter red lead is the "+" leadCalibrate meter on Rx100 scale and attach to known good diode as shown Meter reading must be very low, near ohms When meter leads are reversed, reading must be very high (00 )2If your test results are opposite, reverse internal meter lead con nections so the red lead represents"3Attach ohmmeter red lead to port timer base connector, terminal "0