18. EVAPORATIVE/EXHAUST EMISSION CONTROL SYSTEM 18 EMISSION CONTROL SYSTEM .......................................................................18-1 EXHAUST EXHAUST EMISSION CONTROL SYSTEM DIAGRAM ...................................................18-0 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 Fresh Air Carburetor Air Injection Intake Manifold Vacuum Tube Cut-off Valve Secondary Air Inlet Tube Crankshaft Reed Valve Valve Secondary Piston Secondary Air Air Cleaner Fresh Air Engine Oil Exhaust 18-0