1998 Johnson Evinrude "EC" 2 thru 8 Service Manual, P/N 520202, Page 56Get this manual
In-Line Fuel Filter Servicing [] Replace the filter during the 20-Hour CheckThereafter, change the filter seasonally or every 100 hours
Shut-Off Valve4
Disconnect linkage to shut-off valve Remove gum and varnish deposits by washing in OMC Cleaning Solvent
In-Line Fuel FilterShut-Off Valve2, 2.3, 3.3
1Loosen clamp securing filter and valve, and remove from tank2Clean all parts of the filtervalve assembly with mild aerosol solvent, and blow dryDo not dry parts with cloth as lint might stick to the parts and clog the screenDissolve any gummy deposits with OMC Cleaning Solvent3In-line fuel filtershut-off valve is serviced as complete assembly only