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Emission Control Systems
158 Technical Information
Emission Control Systems
Exhaust Emission Requirements
The U.S. Environmental Protection Agency
(EPA), the California Air Resources Board
(CARB), and Environment Canada (EC) require
that your motorcycle comply with applicable
exhaust emission standards during its useful life,
when operated and maintained according to the
instructions provided.
The vehicle emission control information label (1)
(2) is attached to the left side of the frame.
(1) vehicle emission control information label
(2) vehicle emission control information label
(Canada only)
Noise Emission Requirements
The EPA also requires that motorcycles built after
January 1,1983 comply with applicable noise
emission standards for one year or 1,865 miles
(3,000 km) after the time of sale to the ultimate
purchaser, the time operated and maintained
according to the instructions provided. (USA only)
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.
AMONG THOSE ACTS PRESUMED TO
CONSTITUTE TAMPERING ARE THE ACTS
LISTED BELOW:
• Removal of, or puncturing the muffler, baffles,
reader pipes, or any other component which
conducts exhaust gases.
• Removal of, or puncturing of any part of the
intake system.
• Lack of proper maintenance.
• Removing or disabling any emissions
compliance component, or replacing any
compliance component with a non-compliant
component.
Problems that May Affect Motorcycle
Emissions
If you are aware of any of the following symptoms,
have the vehicle inspected and repaired by your
Honda dealer.
1. Hard starting or stalling after starting.
2. Rough idle.
3. Misfiring or backfiring during acceleration.
4. After-burning (backfiring).
5. Poor performance (drive ability) and poor fuel
economy.
Federal regulations prohibit removing or disabling
a device or element of design that may affect your
engine’s emission performance unless your CRF
will be used exclusively in competition. If you
modify your engine for use in sanctioned
competition events, you must deface or destroy the
emission control information label.
(1)
(2)
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