53
EXHAUST EMISSION CONTROL SYSTEM
KYMCO Clean-Air System
The KYMCO Clean-Air System is a secondary air suction system that helps the exhaust gases to burn more completely.
When the engine's exhaust is sent into the exhaust system, it contains some unused fuel. This exhaust is still hot
enough to burn the unused fuel. The Clean-Air system introduces more air so the oxygen will then permit the unused fuel
to burn in the exhaust system. This continued burning action uses up a great deal of the normally unused fuel and other
gases, as well as changing a significant portion of the poisonous carbon monoxide into harmless carbon dioxide. The
Clean-Air system does not use any energy from the engine and does not affect the scooter's performance.
1
Exhaust valve
2
Cylinder
3
Catalytic converter
4
Engine oil
5
Crankshaft
6
Fresh air
7
Carburetor
8
Intake manifold
9
Fresh air
AT
Air injection air cleaner
AK
Vacuum hose
AL
Air injection control valve
AM
Air
2
2
2
2
2
3
3
3
3
3
4
4
4
4
4
1
1
1
1
1
5
5
5
5
5
6
6
6
6
6
7
7
7
7
7
8
8
8
8
8
9
9
9
9
9
AT
AT
AT
AT
AT
AK
AK
AK
AK
AK
AL
AL
AL
AL
AL
AM
AM
AM
AM
AM