1997 Johnson Evinrude "EU" 9.9 thru 30 2-Cylinder Service Manual, P/N 507263, Page 74Get 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 cleaner1Before inspection, all carburetor components must be perfectly clean: Carburetor must be completely disassembled
Clean parts with CIVIC Carburetor and Choke CleanerUse 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