Emission Control Systems - Honda 2001 VT750C3 Owner's Manual

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EMISSION CONTROL SYSTEMS
Source of Emissions
The combustion process produces l.:arbon monoxide and hydrocarbons. Control of hydrocarbons is
very imponant because under certain conditions. they react 10 fonn photochemical smog when
subjccted to sunlight. Carbon monoxide does not react in the same way. but it is toxic.
Honda MOlor Co.. Ltd. utili7.eS lean carburetor
scHing.~
and other systems to n:duce carbon
monoxide and hydrocarbons.
Exhaust Emission Control System
The exhaust emission control system is composed of lean carburetor scllings. and no adjustments
should
be
madc except idle speed adjustment with the throllle SlOP screw.
The c)(haust emission control system is separate from the crankcase emission control system.
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