1975 Evinrude 40 HP Outboards Service Manual, PN 5093, Page 27Get this manual
REMOVAL OF FUEL PUMP AND FILTER aDiscormect hoses from pump and filter assemblybTo remove fuel pump, remove two screws attaching pump and filter assembly to power head, and remove pump and filter assemblySee Figure 3-21
CLEANING, INSPECTION, AND REPAIR
aThe fuel pump operating components are not serviced separatelyIf malfunction occurs, replace the complete pumpbInspect the filter for accumulation of sediment by removing the filter cap screw and the filter capSee Figure 3-21cClean all parts of the filter assembly and fuel cormectors in solvent and blow dryDO NOT dry parts with cloth, as lint may stick to the parts and clog the passages or prevent the fuel pump valves from seatingDissolve any gummy deposits with OMC Accessory Engine Cleaner (certain solvents will not dissolve these deposits)ONaTE
It is recommended that new fuel filter gasket be installed when servicing the filter and pump assembly
Figure 3-22Fuel ReCirculating System
REASSEMBLY OF FUEL PUMP AND FILTER