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103
Information
Exhaust Emission Control System
The exhaust emission control system includes
the following components that should not
need adjustment, although periodic inspection
by your dealer is recommended.
Z
Secondary Air Injection System
The secondary air injection system adds
filtered air into the exhaust gas to help improve
emission control performance.
Evaporative Emission Control System
An evaporative emissions control system uses
a canister filled with charcoal to adsorb fuel
vapor from the fuel tank and carburetor while
the engine is off. The vapor is drawn into the
engine and burned while riding.
Emission Control Systems
Crankcase Emissions Control System
The positive crankcase ventilation system
prevents gases that build up in the engine’s
crankcase from being released into the
atmosphere. The gases are drawn into the
engine and burned while riding.
Fuel Permeation Emission Control
The fuel tank, fuel hoses, and fuel vapor
charge hoses use fuel permeation control
technologies to prevent fuel vapor emissions.
Tampering with these components to reduce
or defeat the effectiveness of the fuel
permeation technologies is prohibited.
50-state models
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