Honda NPS50/S RUCKUS 2009 Owner's Manual page 185

Exhaust Emission Control System
The exhaust emission control system
includes a secondary air supply system,
and an oxidation catalytic converter.
No adjustment to these systems should be
made although periodic inspection of the
components is recommended.
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.
Emission Control Systems
Oxidation Catalytic Converter
The oxidation catalytic converter is in the
exhaust system. Through chemical
reactions, they convert HC and CO in the
engine's exhaust to carbon dioxide (CO )
and water vapor.
Technical Information
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