1998 Johnson Evinrude "EC" 90, 115 SPL Service Manual, P/N 520209, Page 81Get this manual
[] 6Invert carburetor bodyCheck float height with OIVIC Float Gauge, PIN 324891Adjust float so top surface will touch lower gauge surfacebut will not touch upper surface INote If
adjustment is necessary, do not put pressure on inlet
[]] 7With the carburetor body in its normal position, adjust tab on float hinge to obtain float drop dimension CD of 18 in(22-28 mm)[] 8Install and tighten intermediate-fuel orifices 9Apply OIVIC Locquic Primer and OIVIC Screw Lock to four float chamber screws10Install gasket, float chamber, and four screwsTorque screws in an "X" pattern to 24-36 inIbs(3-4 Nm)[] 11Install the idle air-bleed orifices in the carburetor[] 12Install and securely tighten high-speed fuel orifices 13Install O-rings on the float chamber drain plugsInstall and securely tighten drain plugsDRC7045