1998 Johnson Evinrude EC 5 thru 15 HP Four Stroke Service Manual, Page 270Get this manual
Gearcase Servicing5, 6 Removal
1To avoid accidental starting of engine while servicing, twist and remove all spark plug leads&
2Drain the gearcase by removing the oil level plug and oil filldrain plug 3Remove the propeller and attaching hardware45455