1988 Johnson/Evinrude "CC" 40 thru 55 Models Service Manual, Page 81Get this manual
In-Line Fuel Filter Commercial Models
l!J unclamp fuel hoses to service filter
rJ 1Unscrew in-line filter cover It is not necessary to
f61 2Clean filter cannister and shake filter element to remove collected particlesf61 3Clean all parts of the filter assembly and fuel connectors in solvent and blow dryDO NOT dry parts ith 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 Engine Cleaner (certain solvents will not dissolve these deposits)4In-line filter is serviced as complete assembly onlyIt is necessary to replace only if parts are damagedRecreational Models