1987 Johnson/Evinrude CU Outboards 35A thru 55 Service Manual, Page 279Get this manual
Emergency Ignition Cutoff Switch Operation The cap and lanyard assembly must be attached to the emergency ignition cutoff switch in order to start the engineAttach the lanyard to secure place on clothingDo not place the lanyard on any part of clothing that may be torn or will permit the lanyard to pull away rather than stopping the engineCheck operation of system by starting engine and stopping by pulling lanyardIf engine does not stop, refer to Emergency Ignition Cutoff Switch Test i it is in good working conditionLanyard must always have
An emergency ignition cutoff switch can only be effective if