1993 Johnson Evinrude "ET" 2 thru 8 Service Manual, P/N 508281, Page 73Get this manual
EJ syringe filled with isopropyl alcohol 'sl4Check all carburetor body drillings and passages with 5Visually inspect all gasket surfaces for nicks or irregularities6Check for excessive throttle shaft playCheck for throttle valve misalignment
7If necessary, remove the calibration pocket core plug to inspect the pocket for damage or restrictions: Drive small punch not more than plug and pry out18
in(3 mm) through
Install new core plug with its convex side upSecurely flatten plug with flat end punch and plastic malletApply Gasoila sealer to the rim of plug8If necessary, remove the lead shot to inspect passage 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