Honda CB500X 2020 Owner's Manual page 144

Emission Control Systems
Crankcase Emissions 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
housing and throttle body.
Fuel Permeation Emission Control
The fuel tank, fuel hoses, and fuel vapor charge
hoses use fuel permeation control technologies
to prevent fuel vapor emissions. Tampering with
these components to reduce or defeat the
effectiveness of the fuel permeation
technologies is prohibited.
Noise Emission Control System
#
TAMPERING WITH THE NOISE CONTROL
SYSTEM IS PROHIBITED:
U. S. federal law prohibits, and Canadian
provincial laws may prohibit, the following acts
or the causing thereof: (1) The removal or
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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.
#
AMONG THOSE ACTS PRESUMED TO
CONSTITUTE TAMPERING ARE THE
FOLLOWING ACTS:
Removal of, or puncturing the muffler,
●
baffles, header pipes or any other
component which conducts exhaust gases.
Removal of, or puncturing of any part of the
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intake system.
Lack of proper maintenance.
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Removing or disabling any emissions
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compliance component, or replacing any
compliance component with a noncompliant
component.