1990 Johnson Evinrude "ES" Cross V 88 thru 115, 150 thru 175, P/N 507874, Page 83Get this manual
Intake Manifold ServicingAll Models Removal 1Follow steps listed in Carburetor Removal, this Section2Remove primer solenoid, V6 models3Disconnect throttle cam and linkage4Disconnect crankcase recirculating hoses5Remove manifold screws and remove manifoldDisassembly 1Remove two screws per leaf plate assembly and remove the leaf plate assemblies as required
INote seats, leaf valves, or leaf plate assemblies unless leaf plate Do not disassemble leaf stops are damaged or corrodedCheck parts availability before servicing leaf plate assembliesSome assemblies on some models are not serviced in detail2When disassembling leaf plate assemblies do not lift or bend leaf valves Remove the leaf stop screws and remove the stops, shims, and leaf valves3When disassembled, keep the stops, shims, and leaf valves separated by assembly