Small Engine Condenser

Test the small gasoline
engine condenser.




Small Engine Condenser
Testing




A small engine condenser
can be tested with a
common analog test meter.

Testing a Small Engine
Condenser

Most small engines use a
condenser in their primary
electrical circuit, which triggers
a high voltage surge in
the spark secondary
coils of the ignition coil.

The condenser is placed across
the contacts to help prevent
burning of the contacts, as
they open and close.

The condenser is composed
of a metal case with a film
of tin foil wrapped in a
circular fashion.

The tin foil is insulated
on each wrap and also
insulated from the outer
metal case.

The tin foil is capable of
taking an electrical charge
when battery is applied
between the tin foil and
outer case.

The tin foil in a condenser
is insulated from the
external case.



The capacitor can be tested
with a common multi-meter.

The multi-meter uses an
internal battery to power
the unit.

This same battery can be used
to provide battery to test
a condenser.

Set the multi-meter to the
ohms scale (R1),
battery is at the test leads.

Take a ohms reading between
the center of the condenser,
and outer case, there should
be no reading, otherwise the
condenser is internally shorted.
Place the test probes across
the condenser, then reverse
the leads and you should
see a jump or surge on
the meter.

Each time you reverse the
leads the condenser is
charged and discharged
indicating a good condenser.




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How to check a condenser
in a small gasoline engine,
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