1997 Johnson/Evinrude EU 25, 35 HP 3-Cylinder outboards Service Manual, Page 195Get this manual
Gearcase Servicing Removal 1To avoid accidental starting of engine while servicing, twist and remove all spark plug leads2Mark the trim tab position for reference, then remove the trim tabRemove the propeller from the gearcaseInspect the condition of the propeller hub[] 3Drain the gearcase by first removing the oil level plugthen the oil filldrain plug &
rn 4Remove both water intake screensINote Remove any paint from the upper shift rod