Honda VTX1300T 2009 Owner's Manual page 212

Emission Control Systems
Exhaust Emission Control System
The exhaust emission control system
includes a secondary air supply system,
and two oxidation catalytic converters.
No adjustment to these systems should be
made although periodic inspection of the
components is recommended.
204
Technical Information
Secondary Air Injection System
The secondary air injection system
introduces filtered air into the exhaust
gases in the exhaust port. The secondary
air injection system helps improve
emission control performance.
Oxidation Catalytic Converters
The oxidation catalytic converters are in
the exhaust system. Through chemical
reactions, they convert HC and CO in the
engine's exhaust to carbon dioxide (CO )
and water vapor.
2