1990 Johnson Evinrude "ES" 40 thru 55, P/N 507872, Page 96Get this manual
Intake Manifold ServicingAll Models Removal 1Follow steps listed irCarburetor Removalthis section2 Remove manifold screws and remove manifoldDisassembly
INote DO NOT disassemble leaforplate assemblies damagedleaf unless plate seats, leaf valves, leaf stops are or INote Check partsSome assemblies on some models areplate availability before servicing leaf assembliesnot
serviced in detailcorroded
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 valves3When disassembled, keep the stops and leaf valves separated by assemblyInspection