1988 Johnson/Evinrude "CC" 40 thru 55 Models Service Manual, Page 226Get this manual
Gearcase Servicing45 Comm 55 CommRemoval
ill twist and remove all spark plug leads
To avoid accidental starting of engine while servicing,
2Remove the shift lever retaining pin Push the shift lever toward the powerhead to disengage the shift lever from the shift rod 3Mark the trim tab and the gearcase before removing the trim tab so tab is put back in the same positionRemove the trim tab retaining screw and the trim tab from the gearcase
4Using 5fa inthin wall socket, remove the countersunk screw with the lock washer5Remove the screw from inside trim tab cavity