1997 Johnson Evinrude "EU" 9.9 thru 30 2-Cylinder Service Manual, P/N 507263, Page 78Get this manual
Disassembly
1Remove the low-speed needle and spring from the carburetor body cover2Remove the six cover screwsLift the cover and gasket off the carburetor body3Remove the seven float chamber screwsRemove the float chamber and gasket4Remove the hinge pinfloatand float valve 5Remove the valve seat