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6.3. Muffler catalytic converter
This vehicle meets China's Phase IV emission standard for
motorcycles.
Three-way catalytic converter is the most important purifica-
tion device installed in the motorcycle exhaust system. When
the high-temperature tail gas of the motorcycle passes
through the purifying device, the purifying agent in the
three-way catalytic converter enhances the activity of the
three gases of carbon monoxide, hydrocarbon and nitrogen
oxide, and promotes the three gases to carry out a certain
oxidation-reduction reaction, wherein the carbon monoxide is
oxidized into colorless and nontoxic carbon dioxide gas at
high temperature, the hydrocarbon is oxidized into water and
carbon dioxide at high temperature, and the hydrocarbon is
oxidized into water and carbon dioxide at high temperature;
Nitrogen oxides are reduced to nitrogen and oxygen. The
three harmful gases are changed into harmless gases, so
that the tail gas of the motorcycle can be purified. A faulty
catalytic converter can cause exhaust gas conversion failure
and impair engine performance. When replacing a silencer,
always use a genuine QJMOTOR silencer.
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