18. EVAPORATIVE/EXHAUST EMISSION CONTROL SYSTEM 18 EXHAUST EMISSION CONTROL SYSTEM DIAGRAM ...................................................18-0 EXHAUST EMISSION CONTROL SYSTEM .......................................................................18-1 SERVICE INFORMATION.....................................................................................................18-1 TROUBLESHOOTING ...........................................................................................................18-1 MAINTENANCE SCHEDULE ...............................................................................................18-2 SECONDARY AIR CLEANER...............................................................................................18-3 18 AIR INJECTION CUT-OFF VALVE (A.I.C.V.) ....................................................................18-4 REED VALVE .........................................................................................................................18-5 EXHAUST MUFFLER ............................................................................................................18-6 EXHAUST EMISSION RELATED SYSTEM INSPECTION................................................18-7 EXHAUST EMISSION CONTROL SYSTEM DIAGRAM Carburetor Air Injection Fresh Air Vacuum Tube Cut-off Valve Intake Manifold Secondary Air Crankshaft Inlet Tube Reed Valve Engine Oil Valve Secondary Piston Secondary Air Air Cleaner Fresh Air Catalytic Exhaust Convertre 18-0