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Technical Information 151
Emission Control Systems
Evaporative Emission Control System
(USA - 50 States (meets California) only)
An evaporative emission control system uses
pressure proof fuel tank and fuel fill cap which
maintains inside of the fuel tank at a high
pressure to keep fuel vapor in itself while the
engine is off.
Models sold in and used in California:
An add-on or modified part must be compliant
with applicable ARB evaporative emission
control standards. A violation of this
requirement is punishable by civil and/or
criminal punishment.
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 crankcase breather hose,
air cleaner and throttle body.
23 CRF110F_31KYKD00.book 151 ページ ２０２２年３月２９日 火曜日 午後４時２９分
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