1993 Johnson Evinrude "ET" 40 thru 55 Service Manual, P/N 508283, Page 306Get this manual
Function Tests the following static tests must be performed to be sure all safety related features are functioningto avoid sudden loss of control over engine speed or direction Emergency stop switch Key switch Control handle position Neutral start switch Control cable identification Control handle friction Trimtilt switch '" After servicing the prewired surface mount remote control,
1Disconnect the engine battery cables at the battery2Disconnect the throttle and shift cables from the engine3Disconnect the engine harness connector at the engineEmergency Stop Switch 1Install the stop switch clip and lanyard2Use an ohmmeter calibrated on appropriate scale or continu ity light to test continuity3Turn the key to the ON position