1998 Johnson Evinrude "EC" 40 thru 55 2-Cylinder Service Manual, P/N 520206, Page 95Get this manual
8Check for correct positioning of float levelFloat level controls the height of fuel in the float chamber and is very critical with regard to carburetor calibration and function tH1
Invert carburetor bodyCheck float height with OMC Float Gauge, PI 324891Adjust float so top surface will touch lower gauge surfacebut will not touch upper surface
If float level is not correct, lightly bend metal float arm to adjust levelBe careful not to force float needle valve into seat9Check 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
DRC7046
[lID CD Base of Carburetor Body
Q) Bend Float Lever Tang to achieve proper dimension into in(28-41 mm) 10Install float chamber and new gasket11 Apply OMC Locquic Primer and OMC Screw Lockto the threads of four float chamber screwsInstall the screws and torque in anX" pattern to 25-35 inIbs(2,8-4,0 Nm)Installation