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22 – English
Maintenance
Checking and adjusting of throttle
wire
Check that the engine responds to the throttle control and that
the correct engine speed is achieved at full throttle.
If doubts arise, contact your service representative.
If adjustment is necessary, adjust the lower wire as follows:
1 Loosen the clamping screw for the cable’s outer casing
and move the throttle to the full throttle position.
2 Check that the throttle wire is attached to the correct hole
in the lower lever, see diagram.
3 Pull the throttle wire casing to the far left and tighten the
clamping screw.
Checking and adjusting the choke
wire
If the engine is producing black smoke or is difficult to start
then the choke wire (upper wire) may be incorrectly adjusted.
If doubts arise, contact your service representative.
If it is necessary to adjust the choke, proceed as follows:
1 Release the clamping screw that secures the wire casing
and set the choke control to maximum choke.
2 Check that the throttle wire is attached to the upper lever,
see diagram.
3 Pull the choke wire casing to the far right and tighten the
clamping screw.
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.
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.
Checking the transmission’s air
intake
Check that the transmission’s air intake in not blocked.
Remove the transmission cover and clean any grass cuttings
from the transmission’s cooling fins if necessary.
Cooling is impaired if the air intakes are blocked or the
transmission housing is dirty, this can result in damage to the
transmission.