1998 Johnson Evinrude EC 5 thru 15 HP Four Stroke Service Manual, Page 72Get this manual
Carburetor ServicingAll Models Removal
1Avoid accidental start-up while servicing engine; twist and remove all spark plug leads2Remove the manual starter as described in Section 7
9.915 (305cc) Models
1Remove hose from air hornLoosen top retaining screwRemove side screw and air horn
2Remove the choke cable clamp screw and disengage the cable from choke linkRemove hose(s) from carburetor nipple(s)
3Use open end of OMC Carburetor Flange Nut Removal Tool, PIN 3422114Remove carburetor flange nuts and remove carburetor, gaskets, and insulator