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Maintenance
3 Pull back the throttle to the full throttle position and check
that the choke is no longer actuated.
Replacement of fuel filter
Replace the fuel filter every 100 running hours (once per
season) or more frequently if it is clogged.
Replace the filter as follows:
1 Open the engine cover.
2 Move the hose clips away from the filter. Use a pair of flat
pliers.
3 Pull off the filter from the hose ends.
4 Press the new filter into the ends of the hoses. If
necessary apply liquid detergent to the ends of the filter to
facilitate connection.
5 Push the hose clips back on the filter and tighten.
Replacing the air filter
If the engine seems to lack power or does not run smoothly
this may be because the air filter is clogged. It is therefore
important to replace the air filter at regular intervals (see
Maintenance/Maintenance Schedule for the correct service
interval).
Replace the air filter as follows:
1 Open the engine cover.
2 Loosen the knobs holding the filter cover in place and
remove it.
3 Remove the filter cartridge from the filter housing.
4 Remove the foam rubber prefilter which is placed around
the filter cartridge and clean using a mild detergent.
5 Dry the pre-filter properly.
6 Clean the filter by knocking it with care against a hard
surface. Do not use compressed air to clean the filter.
Replace the air filter if it is still dirty.
7 Refit the prefilter on the filter cartridge.
Slide the filter onto the air hose.
8 Push the filter cartridge in place.
9 Refit the air filter cover.
Checking the fuel pump’s air filter
Check regularly that the fuel pump’s air filter is free from dirt.
The filter can when necessary be cleaned with a brush.
!
WARNING! The exhaust system is hot. Let it
cool before starting to replace the air filter.
IMPORTANT INFORMATION
Never run the engine without the air filter fitted.
Do not use compressed air to clean the paper filter.
The filters must not be oiled. They must be fitted dry.