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TECHNICAL&CONSUMER
INFORMATION
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 is 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 emis-
sion 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:
l
Removal
or alteration
of any part of the intake,
fuel,
or exhaust
systems.
l
Altering
or
defeating
the
governor
linkage
or
speed-adjusting
mechanism
to cause
the
engine
to operate
outside
its design
parameters.
L
53
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