1989 Johnson Evinrude "CE" 9.9 thru 30 Service Manual, P/N 507754, Page 89Get this manual
Disassembly INot
Do not disassemble leaf plate assemblies unless leaf plate seats, leaf valves, or leaf stops are damaged or corroded
1sl 1Remove two screws per leaf valve and remove the leaf valves as required2When disassembling leaf plate assemblies, do not lift or bend leaf valves Remove the leaf stop screws and remove the stops shims, and leaf valves12320
3When disassembled, keep the stops, shims, and leaf valves separated by assemblyAssembly
intake manifold components must be perfectly clean before assemblyDo not use strong carburetor cleaner or hot soaking tank
f7l 1Place leaf valves on leaf plateIf new valves do not seat on the leaf plate, turn the leaf valves over12321
Used leaf valves must not be turned over for reuseLeaf valve ate may rea hen returne to serVice, causing senous 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 burrs