1993 Johnson Evinrude "ET" 60 degrees LV Service Manual, P/N 508286, Page 78Get this manual
5Inspect throttle body and throttle shaft Check body and shaft for excessive wear or side play Check throttle plates for looseness or incorrect seatingMaximum throttle plate clearance is 0.002 in(0,05 mm) Check throttle plate retaining screws for tightness6If necessary, remove the throttle body core plugs by driving small punch through the center of the plug and gently prying it outDo not drive punch more than 1s in(3,2 mm) into the plug, you might damage the calibration pocket7Inspect the calibration pocket Check the core shoulder for nicks or distortion Check the pocket for damage or contamination Check calibration holes for contaminationAssembly