1998 Johnson Evinrude "EC" 9.9 thru 30 HP 2-Cylinder Outboards Service Manual, Page 72Get this manual
Carburetor Cleaning and InspectionAll Models Cleaning
INote Never clean carburetor by submerging or soaking it in a
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 OVIC Carburetor and Choke Cleaner
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