Emission Control Systems - Honda Transalp XL700V Manual

EMISSION CONTROL SYSTEMS

SOURCE OF EMISSIONS
The combustion process produces carbon monoxide (CO), oxides of nitrogen (NOx) and hydrocarbons (HC). Control of
carbon monoxide, oxides of nitrogen and hydrocarbons is very important because, under certain conditions, they react to
form photochemical smog when subject to sunlight. Carbon monoxide does not react in the same way, but it is toxic.
Honda Motor Co., Ltd. utilizes various systems to reduce carbon monoxide, oxides of nitrogen and hydrocarbons.
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 throttle body.
THROTTLE BODY
GENERAL INFORMATION
AIR CLEANER HOUSING
FRESH AIR
BLOW-BY GAS
1-55