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5. Press the parking brake pedal again to release the
parking brake.
To replace the fuel filter
1. Open the engine cover to get access to the fuel filter.
2. Compress the fuel tank hose to prevent leakage.
3. Move the hose clips away from the fuel filter with a
pair of flat pliers.
4. Pull off the fuel filter from the hose ends. A small
quantity of fuel can leak.
5. Push the new fuel filter into the ends of the hoses.
Apply liquid detergent to the ends of the fuel filter to
make the connection easier.
6. Push the hose clips against the fuel filter.
To remove and install the air filter
1. Remove the air filter cover. Refer to
To remove and
install the air filter cover on page 19
.
2. Carefully remove the air filter.
3. Clean and examine the air filter.
4. Install in the opposite sequence.
To examine and replace a spark plug
1. Open the engine cover.
2. Remove the spark plug cap and clean around the
spark plug.
3. Remove the spark plug with a 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
correct. Refer to
Technical data on page 32
.
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.
20 1686 - 004 - 04.10.2022
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