2007 Evinrude E-Tec 75, 90 HP outboards Service Manual, Page 182Get this manual
OILING SYSTEM COMPONENTS
Cylinder and Crankcase
Each cylinder has pressed-in fitting at the front of the cylindercrankcase which is connected to an oil distribution hoseLubrication for each cylinder is injected through these fittingsAdditionally, one oil distribution hose is routed to check valve that is connected to the incoming fuel supply hoseThis provides limited amount of oil to keep injector nozzles clean