KYMCO AHG5, Service Manual

Page: 354 / 363

20. EEC SYSTEM
DT X360
20-3
2. E.E.C System Introduction
WARNING:
• Before running the engine, make sure that the working area is well ventilated. Never run
the engine in a closed area. The exhaust contains poisonous carbon monoxide gas,
which may cause death to people.
• Gasoline is extremely flammable and is explosive under some conditions. The working
area must be well ventilated and do not smoke or allow flames or sparks near the
working area or fuel storage area.
2.1. Evaporative Emission Control System
The evaporative emission control system is used to prevent gasoline vapors from escaping
into the atmosphere from the fuel tank and fuel system.
2.2. Crankcase Emission Control System
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.
2.3. Exhaust Emission Control System
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.
2.4. 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.
Note: Do not adapt any original factory design and setting, which will deteriorate the
sound or emission level.