1990 Johnson Evinrude 120 thru 140, 185 thru 225, 300 HP, P/N 507875, Page 421Get this manual
COA2417
EJ wayRemove the retaining ring using OMC Retaining Ring
Pliers, PI 303857Remove the manual release valve
f51 1Be sure the manual release valve
is screwed in all the
2Inspect the O-ring in the manual release valve for nicks and cutsInspect the rubber tip of the valve for tears or deformation
[Z] 3Remove the oil level plug from the oil reservoirE.J rmg, If necessary