Emission Control System Information - Honda GXV140 Owner's Manual

Emission Control System Information
Source of Emissions
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 subjected to sunlight. Carbon
monoxide does not react in the same way, but it
i s
toxic.
Honda utilizes lean carburetor settings and other systems to reduce
the emissions of carbon monoxide, oxides of nitrogen, and
hydrocarbons.
The U S . and California Clean Air Acts
EPA and California regulations require all manufacturers to furnish
written instructions describing the Operation and maintenance of
emission control systems.
The following instructions and procedures must be followed in order to
keep the emissions from your Honda engine within the emission
standards.
Tampering and Altering
Tampering with
or
altering the emission control system may increase
emissions beyond the legal limit. Among those acts that constitute
tampering are:
Removal or alteration of any part of the intake, fuel, or exhaust
systems.
Altering or defeating the governor linkage or speed-adjusting
mechanism to cause the engine to operate outside
its
design
parameters.
Problems That May Affect Emissions
if you are aware of any of the following symptoms, have your engine
inspected and repaired by your servicing dealer.
Hard starting or stalling after starting.
Rough idle.
Misfiring or backfiring under load.
Afterburning (backfiring).
0
Black exhaust smoke or high fuel consumption.
Replacement Parts
The emission control systems
on
your Honda engine were designed,
built, and certified to conform with EPA and California emission
regulations. We recommend the use of genuine Honda parts whenever
you have maintenance done. These original-design replacement parts
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 emission control system.
A manufacturer of an aftermarket part assumes the responsibility that
the part will not adversely affect emission 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.
Maintenance
Follow the maintenance schedule
on
page 13. Remember that this
schedule is based on the assumption that your machine will be used
for its designed purpose. Sustained high-load or high-temperature
operation, or use in unusually wet or dusty conditions, will require more
frequent service.
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