1994 Johnson/Evinrude "ER" 9.9 thru 30 outboards Service Manual, Page 88Get this manual
Before proceeding, be sure that all parts are perfectly cleanBe sure that all replacement parts match original ones in size and shapeReplace all gaskets, O-rings, and sealing washers each time you assemble carburetor1If removed, press the air vent
9.9815HP
2THRU6HP
CD in the
carburetor body
2Install the high-speed orifice 3Install the gasket
and valve seat
4Install the hinge pinfloatand float valve 5Check for correct positioning of the float levelThe float level controls the height of fuel in the float chamber and is critical with regard to carburetor calibration and function Turn carburetor body upside down and hold so gasket surface is horizontalThe weight of the float will close the float valve needleRest OMC Float Gauge, PI 324891, on gasket surface and slide gauge up, next to floatTop of float should be between notches on gauge