Catalytic Converter - Honda NSS250A Owner's Manual

Catalytic Converter

This scooter is equipped with an oxidation

catalytic converter.

The catalytic converter contains precious
metals that serve as catalysts, promoting
chemical reactions to convert the exhaust
gasses without affecting the metals.
The catalytic converter acts on HC and
CO. A replacement unit must be an
original Honda part or its equivalent.
The catalytic converter must operate at a
high temperature for the chemical
reactions to take place. It can set fire to
any combustible materials that come near
it. Park your scooter away from high
grasses, dry leaves, or other flammables.
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Technical Information
A defective catalytic converter contributes
to air pollution, and can impair your
engine's performance. Follow these
guidelines to protect your scooter's
catalytic converter.
Always use unleaded gasoline. Even a
small amount of leaded gasoline can
contaminate the catalyst metals, making
the catalytic converter ineffective.
Keep the engine tuned-up.
Have your scooter diagnosed and
repaired if it is misfiring, backfiring,
stalling or otherwise not running
properly.