ENGLISH
Emission Control System Information
Source of Emissions
ReplacementParts
Maintenance
Problems That May Affect Emissions
Tampering and Altering
The U.S., California Clean Air Acts and Environment C anada
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The combustion process produces carbon monoxide, oxides of
nitrogen, and hydrocarbons. Control of hydrocarbons and oxides
of nitrogen is very important because, under certain conditions ,
they react to form photochemical smog when subjecte d to
sunlight. Carbon monoxide does not react in the same way, but it
is toxic.
The emission control systems on your Honda engine were
designed, built, and certified to conform with EPA, California
(models certified for sale in Cali fornia), and Canadian emission
regulations. We recommend the use of Honda Genuine parts
wheneveryou have maintenance done. These origi nal-design
replacementparts are manufactured to the same standards as the
original parts, so you can be confident of their performance. The
use of replacement parts that are not of the original design and
quality may impair the effectiveness of your emis sion control
system.
Follow the maintenance schedule on page .Remember that this
schedule is based on the assumption that your machine will be
used for its designed purpose. Sustained high-l oad or high-
temperature operation, or use in unusually wet or dusty conditions,
will requiremore frequent service.
A manufacturer of an aftermarket part assumes the responsi bility
that the part will not adversely affect e mission performance. The
manufacturer or rebuilder of the part must certify that use of the
part will not result in a failure of the engine to comply with
emission regulations.
Honda utilizes appropriateair/fuel ratios and other emissions
control systems to reduce the emissions of carbon monoxide,
oxides of nitrogen, and hydrocarbons.
Additionally, Honda fuel systems utilize components and control
technologies to reduce evaporative emissions.
Black exhaust smoke or high fuel consumption.
Afterburning (backfiring).
Misfiring or backfiring under load.
Rough idle.
Hardstarting or stalling after starting.
If you are awareof any of the following symptoms, have your
engine inspected and repaired by your ser vicing dealer.
Altering or defeating the governor linkage or speed-adjusti ng
mechanism to cause the engine to operate outside its design
parameters.
Removal or alteration of any part of the intake, fuel, or exhaus t
systems.
Tamperingwith or altering the emission control system may
increase emissions beyond the legal limit. Among those acts that
constitute tampering are:
The following instructions and procedures must be followed in
order to keep the emissions from your Honda engine within the
emissionstandards.
EPA, California and Canadian regulations require a ll
manufacturers to furnish written instructions describing the
operation and maintenance of emission control s ystems. 6
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