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Emission Control Systems
Evaporative Emission Control System
(USA - 50 states [meets California])
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 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 air cleaner and the throttle body.
Noise Emission Control System
TAMPERING WITH THE NOISE CONTROL
SYSTEM IS PROHIBITED: U. S. federal law
prohibits, or Canadian provincial laws may
prohibit the following acts or the causing
thereof: (1) The removal or rendering
inoperative by any person, other than for
purposes of maintenance, repair or
replacement, of any device or element of
design incorporated into any new vehicle for
the purpose of noise control prior to its sale or
delivery to the ultimate purchaser or while it is
in use; or (2) the use of the vehicle after such
device or element of design has been removed
or rendered inoperative by any person.
31K99Q00_19 CRF250F.book 152 ページ ２０１８年８月１日 水曜日 午前１１時６分
152 Technical Information
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