EXHAUST EMISSION CONTROL SYSTEM
The exhaust emission control system adopted by this model is an oxidizing catalytic converter which is
located in the middle of the exhaust muffler to reduce pollutants in the exhaust emission.
Exhaust Muffler Diagram
FUNCTION
Item Purpose Function
Oxidizing
Catalytic
Converter
Reduce the concentration of
HC and CO in the exhaust
emission.
The precious metal in the oxidizing catalytic
converter is used to oxidize HC and CO in the
exhaust emission into CO2 and H2O to avoid
air pollution.
TROUBLESHOOTING
Engine runs erratic at idle speed and
Lack of power and high CO & HO high fuel consumption
1. Clogged exhaust muffler 1. Clogged exhaust muffler
2. Faulty oxidizing catalytic converter 2. Clogged carburetor
3. Carburetor adjusted improperly 3. Clogged air cleaner
4. Clogged air cleaner 4. Faulty spark plug
5. Faulty spark plug 5. Incorrect ignition timing
6. Incorrect ignition timing
EXHAUST MUFFLER
REMOVAL
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