1993 Johnson Evinrude "ET" 9.9 thru 30 Service Manual, P/N 508282, Page 78Get this manual
Carburetor Cleaning and InspectionAll Models Cleaning
Never clean carburetor by submerging or soaking it in hot tank or carburetor cleanerDo not expose plastic or rubber parts to any carburetor cleaner
1Before inspection, all carburetor components must be perfectly clean: Carburetor must be completely disassembled Clean parts with mild aerosol solvent Use clean bristle brush to remove gum or varnish deposits Blow dry with shop air of not more than 25 PSI (172 kPa)When drying passages, direct the flow of shop air opposite to the direction of fuel flowFloat Valve Assembly 1Inspect the inlet needle and float valve seat: Check the inlet needle tip for grooves, nicks, scratches, or distortion Check the float valve seat for nicks, scratches, or distortion Check the float for signs of oil or gasoline saturationThe inlet needle and float valve seat must be replaced as a