1996 Johnson Evinrude "ED" 90 CV 88 thru 115 Service Manual, P/N 507126, Page 82Get this manual
Carburetor Body f21 1Check all drillings and passages with syringe filled with isopropyl alcohol2Visually inspect all gasket surfaces for nicks or irregularities3Check for excessive throttle shaft misalignmentCheck for throttle valve
f31 4If necessary, remove the calibration pocket core plugs to inspect the pocket for damage or restrictions: Drive small punch not more than 1a in(3 mm) through plug and pry out Install new core plug with the convex side upSeat the plug using flat end punch and plastic malletApply Gasoila sealer, OMC PIN 200763, to the rim of the core plug after it is seated