Honda Car Engine G100 Owner's Manual page 30

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 emission contro
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:
0
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.
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