1996 Johnson Evinrude "ED" 9.9 thru 30 2-Cylinder Service Manual, P/N 507122, Page 87Get this manual
[] Assembly
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
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 functionTurn carburetor body upside down and hold so gasket surface is horizontalThe weight of the float will close the float valve needleRest OMC Float Gauge, PIN 324891, on gasket surface and slide gauge up, next to floatTop of float should be between notches on gauge
mholding down the indicated "9.915 HP Be certain gauge is Use notch that is not float If float level is not between the notches of gauge, lightly bend metal float arm to adjust levelBe careful not to force float needle valve into seat6Check for correct float drop dimensionThis dimension affects the full opening of the inlet needle and is critical to correct operation of the carburetorWith carburetor body in normal running position, the float must drop open to dimension shownTo adjust, bend tab on float arm where tab contacts float seat