1987 Johnson/Evinrude CU Outboards 35A thru 55 Service Manual, Page 132Get this manual
Stop ButtonKey Switch The stop button or key switch and emergency ignition L!I cutoff switch are connected to the power pack through the engine wiring harnessWhen activated, these switches direct the power pack output to ground, stopping the ignition system Ignition Coil
The ignition coil consists of two windings of wire wrapped around compacted ferrite materialThe coil has primary and secondary terminal connection and ground plate