1993 Johnson Evinrude "ET" 40 thru 55 Service Manual, P/N 508283, Page 63Get this manual
In-Line Fuel Filter Servicing Commercial Models
1sl1Unscrew in-line filter coverIt is not necessary to remove fuel hoses to service filter1sl2Clean filter canister collected particles
and shake filter element to remove
1sl3Clean all parts of the filter assembly and fuel connectors with mild aerosol solvent, and blow dryDo not dry parts with cloth as lint might stick to the parts and clog the passages or prevent the fuel pump valves from seatingDissolve any gummy deposits with OMC Cleaning SolventRecreational Models