EMISSION CONTROL
Crankcase Emission Control System
Exhaust Emission Control System
Evaporative Emission Control System
Noise Exhaust Emission Control System
The engine, intake and exhaust systems of the scooter are designed to comply with federal
or local noise regulations. Do not modify the intake or exhaust system; this behavior will
offend against the noise regulations.
The scooter is equipped with a closed crankcase system. Blow-by gas is recycled into the
combustion chamber via the intake system. This arrangement is to prevent blow-by gas
from spreading to the atmosphere.
The exhaust emission from the scooter is controlled by combustion management, fuel
delivery, ignition setting and exhaust system. The exhaust system also includes the
catalytic converter in the muffler.
The evaporative emission control system is used to prevent gasoline vapors from escaping
into the atmosphere from the fuel tank and fuel system.
WARNING
Do not adapt any original factory design and setting, which will
deteriorate the sound or emission level.
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