1998 Johnson Evinrude "EC" 2 thru 8 Service Manual, P/N 520202, Page 76Get this manual
Assembly
Note 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 carburetor
1If removed, press the air vent
in the carburetor bodyfili i
2Install the high-speed orifice 3Install the gasket and valve seat
4Install the hinge pinfloatand float valve 5Check for correct positioning of 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, PIN 324891, on gasket surface and slide gauge up, next to floatTop of float should be between notches on gauge803406