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CBR600F4I (2001-2003)
Инструкция по эксплуатации Страница: 42

Honda CBR600F4I (2001-2003) [42/492] Exhaust emission control system pulse secondary air supply system

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GENERAL INFORMATION EXHAUST EMISSION CONTROL SYSTEM PULSE SECONDARY AIR SUPPLY SYSTEM The exhaust emission control system is composed of a lean fuel injection setting and no adjustments should be made except idle speed adjustment with the throttle stop screw The exhaust emission control system is separate from the crankcase cmis sion control system The exhaust emission control system consists of a secondary air supply system which introduces filtered air into the exhaust gases in the exhaust port Fresh air is drawn into the exhaust port by the function of the Pulse Secondary Air Injection PAIR control valve This charge of fresh air promotes burning of the unburned exhaust gases and changes a considerable amount of hydrocar bons and carbon monoxide into relatively harmless carbon dioxide and water vapor The reed valve prevents reverse air flow through the system The PAIR solenoid control valve is controlled hy the PGM FI unit and the fresh air passage is opened and closed according the running condition ECT IAT TP MAP sensor and engine revolu tion No adjustments to the secondary air supply system should be made although periodic inspection of the components is rec ommended California type I he California type is equipped with two three way warm up catalytic converters a three way catalytic converter and a heated oxygen sensor The three way catalytic converters are in the exhaust system Through chemical reactions they convert HC CO and NOx in the engine s exhaust to carbon dioxide CO2 dinitrogen and water vapor No adjustment to these systems should be made although periodic inspection of the components is recommended 1 39

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