1991 Johnson/Evinrude Models "EI" 40 thru 55 Service Manual, Page 100Get this manual
Intake Manifold ServicingAll Models Removal 1Follow steps listed in Carburetor Removalthis section 2Remove manifold screws and remove manifoldDisassembly
INote plateNOT disassemble leaforplate assemblies damagedleaf DO unless seats, leaf valves, leaf stops are or INote Check
corroded parts availability before servicing leaf plate assembliesSome assemblies on some models are not serviced in detail
1Remove two screws per leaf plate assembly and remove the leaf plate assemblies as required
2When disassembling leaf plate assemblies, do not lift or bend leaf valvesRemove the leaf stop screws and remove the stops and leaf valves 3When disassembled, keep the stops and leaf valves separated by assembly Inspection