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. Clean Air Act
EPA 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 emis-
sions beyond the legal limit. Among those acts that constitute tampering are:
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Removal or alteration of any part of the intake, fuel, or exhaust systems.
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Alterations that would cause the engine to operate outside its design
parameters.
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