Honda VTX1300C VTX 2004 Owner's Manual page 194

The Vehicle Emission Control
Information label ( ) ( ) is attached on 1
the rear fender under the seat.
The Vacuum Hose Routing Diagram label
( ) is attached on the rear fender under 3
the seat (California only).
2
Emission Control Systems
Source of Exhaust Emissions
The combustion process produces carbon
monoxide (CO), oxides of nitrogen (NOx),
and hydrocarbons (HC). 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 Motor Co., Ltd. utilizes lean
carburetor settings and other systems to
reduce carbon monoxide and
hydrocarbons.
Technical Information
185