1993 Johnson Evinrude "ET" 60 degrees LV Service Manual, P/N 508286, Page 81Get this manual
'5l 7If the intake manifold gasket needs to be replacedremove the two screws securing each leaf plate assemblyRemove gasket and discardThe leaf plate assemblies contain no serviceable partsDo not disassemble leaf plate assembliesInspection
1Inspect the leaf plate assemblies for damage:
The gasket surface must be flat, 0.003 in (0,08 mm) The leaf plates must not be distorted The leaf tips must not be cracked or chipped The leaf plate stops must not be distorted or loose Test leaf plate screw tightnessIf loose, retighten using OMC Screw Lock