1994 Johnson/Evinrude Outboards 40 thru 55 Service Manual, Page 99Get this manual
Float Valve Assembly
1Inspect the inlet needle and float valve seat: Check inlet needle tip for grooves, nicks, scratches, or distortion Check float valve seat for nicks, scratches, or distortion Check float for signs of oil or gasoline saturation Notelnlet needle and float valve seat must be replaced as set
Carburetor Body
1Check all drillings and passages with syringe filled with isopropyl alcohol2Visually inspect all gasket surfaces for nicks or irregularities3Check for excessive throttle shaft playCheck for throttle valve misalignment.jQl 4Remove the vent well core plug to inspect the pocket for damage or restrictionsDrive small punch not more than 18 in(3 mm) through plug and pry out