1994 Johnson/Evinrude Outboards 40 thru 55 Service Manual, Page 67Get this manual
In-line Fuel Filter Servicing Commercial Models
r&11Unscrew in-line filter cover It is not necessary to remove fuel hoses to service filterr&12Clean filter canister collected particles
and shake filter element to remove
r&13Clean 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