1998 Johnson Evinrude "EC" 90, 100C, 105C, 115, 150, 150C, 175 60 deg. LV Service Manual, P/N 520210, Page 85Get this manual
In-line Fuel Filter Servicing Service fuel filter during 20-Hour Check, and annually or every 100 hours thereafter
Commercial Models 1Unscrew in-line filter bowl 2Gently pullout filter element
3Clean all parts of the filter assembly with mild aerosol solvent and blow dryDo not dry parts with cloth as lint might stick to the parts and clog the passagesDissolve any gummy deposits with OMC Cleaning Solvent