1992 Johnson Evinrude "EN" 9.9 thru 30 Service Manual, P/N 508142, Page 81Get this manual
Carburetor Servicing, 9.9-15 Removal
i and remove all spark plug leads
'" 1Avoid accidental start-up while servicing engine; twist
[TI 2Loosen four retaining screws and remove air silencer cover3Remove the low speed adjustment knob