1996 Johnson Evinrude "ED" 9.9 thru 30 2-Cylinder Service Manual, P/N 507122, Page 83Get this manual
Disassembly INotel Do not disassemble leaf plate assemblies unless leaf plate seats, leaf valves, or leaf stops are damaged or corroded[] 1Remove two screws per leaf valve and remove the leaf valves as required2When disassembling leaf plate assemblies, do not lift or bend leaf valvesRemove the leaf stop screws and remove the stops, shims, and leaf valves3When disassembled, keep the stops, shims, and leaf valves separated by assembly12320
Assembly Note All intake manifold components must be perfectly clean before assemblyDo not use strong carburetor cleaner or hot soaking tank
rnleafPlace leaf valvesleaf leaf plateIf new valves do not seat on 1on the plate, turn the valves overINotel Used leaf valves must not be turned over for reuseLeaf valve may break when returned to service, causing serious powerhead damage2If any leaf valves are standing open, apply light pressure using pencil eraserIf leaf valve closes with light pressure, valve is acceptableIf not, inspect leaf plate for high spots or burrsI Note Do not lap leaf plateIf plate is too smooth, the leaf valves may stick closed after off-season storage3Apply OMC Locquic Primer to mounting screws and allow to air dry[] 4Apply OMC Screw Lock to mounting screwsWipe off excess adhesive5Assemble leaf valve shim (if required) and leaf stopInstall screws finger tight[] 6Center the leaf valves on the plate using index marks]7Tighten screws securelyInstallation 1Position leaf plate assembly and new gaskets on powerheadInstall gaskets dryUse no sealer