1991 Johnson/Evinrude EI 60 thru 70 outboards Service Manual, Page 93Get 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 misalignmentf1Ol 4If necessary, remove the calibration pocket core plugs to inspect the pocket for damage or restrictions Drive small punch not more than plug and pry outlS
in(3 mm) through