To Examine And Replace The Spark Plug - Husqvarna P 524 Manual De Usuario

2. Loosen the 2 knobs that hold the air filter cover.
3. Remove the the air filter cover.
4. Remove the air filter cartridge from the filter housing.
5. Hit the air filter cartridge carefully against a hard
surface and blow with compressed air on the inner
surface. Replace the air filter if it does not become
clean or if it is damaged.
6. Remove the inner air filter behind the air filter
cartridge.
7. Hit the inner air filter against a hard surface to clean
it. Replace the air filter if it does not become clean or
if it is damaged.
CAUTION: Do not use compressed air to
clean the inner air filter.
8. Put the inner air filter and the air filter cartridge back
in their initial positions in the filter housing. Make
sure that the air filter cartridge is correctly attached
on top of the air intake.
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9. Attach the air filter cover and make sure that the
particle collector points down.

To examine and replace the spark plug

1. Open the engine cover.
2. Remove the ignition cable shoe and clean around
the spark plug.
3. Remove the spark plug with a ¾ʺ (19 mm) spark
plug wrench.
4. Examine the spark plug. Replace it if the electrodes
are burned or if the insulation has cracks or
damages. If the spark plug is not damaged, clean it
with a steel brush.
5. Measure the electrode gap and make sure that it is
Technical data on page 44 .
correct. See
6. Bend the side electrode to adjust the electrode gap.
7. Put the spark plug back in and turn it by hand until it
touches the spark plug seat.
8. Tighten the spark plug with the spark plug wrench
until the washer is compressed.
9. Tighten a used spark plug ⅛ of a turn more, and a
new spark plug ¼ turn more.
CAUTION: Spark plugs that are not
tightened correctly can cause damage to
the engine.
10. Replace the ignition cable shoe.
CAUTION: Do not try to start the engine
if the spark plug or ignition cable is
removed.
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