154
Exhaust Emission Control System
Crankcase Emission Control System
Source of Emissions
Emission Control Systems
Technical Information
The exhaust emission control system is
composed of lean carburetor settings, 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 emission control system.
The engine is equipped with a closed crankcase
system to prevent discharging crankcase
emissions into the atmosphere.
Blow-by gas is returned to the combustion
chamber through the air cleaner and the
carburetor.
The combustion process produces carbon
monoxide (CO) and hydrocarbons (HC).
Control of hydrocarbons is very important
because under certain conditions, they react to
form photochemical smog when subjected to
sunlight. Carbon monoxide does not react in
the same way, but it is toxic.
Honda Motor Co., Ltd. utilizes lean carburetor
settings and other systems to reduce carbon
monoxide and hydrocarbons.
04/03/09 16:09:51 31KPS620_163
Содержание CRF230F 2005
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Страница 23: ...rear brake pedal 14 Component Locations Operating Controls 04 03 09 15 50 21 31KPS620_023 ...
Страница 29: ...20 Operating Controls 04 03 09 15 51 09 31KPS620_029 ...
Страница 151: ...142 Taking Care of the Unexpected 04 03 09 16 08 21 31KPS620_151 ...