1990 Johnson Evinrude "ES" 40 thru 55, P/N 507872, Page 281Get this manual
50 12Move control handle to align rear set screw with access hole in housing Insert hex wrench through hole and tighten second set screw f51l
on center of neutral start cam while making sure neutral lock slide of control handle is engaged in notchControl handle should not be able to move without releasing neutral lock slideIf the neutral lock slide does not engage notch in index plate when neutral switch is centered on neutral cam, it wi" be necessary to reposition either the control handle or the index plate
i bly of remote controlPosition neutral start switch