1998 Johnson Evinrude "EC" 90, 115 SPL Service Manual, P/N 520209, Page 84Get this manual
Carburetor Body
1Check all drillings and passages with syringe filled with isopropyl alcohol
2Visually inspect all gasket surfaces for nicks or irregularities3Check for excessive throttle shaft playCheck for throttle valve misalignment
4If necessary, remove the calibration pocket core plugs to inspect the pocket for damage or restrictions: Drive small punch not more than through plug and pry out18
Install new core plug with the convex side upSeat the plug using flat end punch and plastic malletApply Gasoila sealer to the rim of the core plug after it is seated[] 5If necessary, remove the lead shots to inspect passages for restrictions or leaks: Gently pry up on lead shot with sharp-edged tool Install new lead shotFlatten shot with flat end punch and plastic malletCheck for leakage[] 6Check for leaks between emulsion pickup tube and carburetor body: Invert carburetor body and fill idle circuit with isopropyl alcohol Check for leaks at point If leak occurs, blow dry and apply drop of OMC Ultra Lock at point