2004 SR Johnson 2-stroke 40, 50HP Service Manual, Page 156Get this manual
FUEL SYSTEM OMS PUMP
Removable Fitti ngs
General Procedures
Note direction of 90 fitting before removing it Place drop of outboard lubricant on thin 0rings (pulse fitting and fuel inlet fitting) to ease installation Whenever thread-forming screw is reinstalled in plastic part, always remove all oil from hole and screwTurn screw backwards until it drops into original threads, then turn screw forwardIf screw is allowed to form new threads with each use, or if there is any oil in hole or on screw, screw will deform material until the screw pulls out If fitting must be positioned directly over one of the retainer screws, put drop of oil on the fitting and tighten that screw firstCarefully rotate the fitting over the tightened screw (using Phillips screwdriver in fitting as lever), and then tighten the other screwDo not use pliers to turn fitting and do not scratch the hose sealing surface of fitting Tighten fitting retainer screws only until retainer bottoms against housingDo not overtighten