1998 Johnson Evinrude "EC" 90, 100C, 105C, 115, 150, 150C, 175 60 deg. LV Service Manual, P/N 520210, Page 283Get this manual
Solenoid Tests
All engine wiring must be disconnected from the solenoid before proceeding with this test1Calibrate ohmmeter on appropriate scaleConnect one lead to term inal and the other lead to terminal Ohmmeter should show high reading If ohmmeter shows low reading, replace the solenoid
2With the ohmmeter still connected as described in Step 1, attach positive battery jumper to terminal and negative battery jumper to terminal The solenoid should close with an audible click Ohmmeter should show low reading If ohmmeter shows high reading, replace the solenoid