► Blip the throttle trigger to disengage the start‐
ing throttle position. The slide control moves to
the normal run position
F
– and the engine set‐
tles down to idle speed.
► Open the throttle slightly.
► Warm up the engine for a short period.
10.5
If engine does not start
10.5.1
Choke knob
If you did not turn the choke knob to
e
quickly
enough after the engine began to fire, the com‐
bustion chamber is flooded.
► Turn the choke knob to
e
.
► Select the starting throttle position.
► Start the engine by pulling the starter rope
briskly – 10 to 20 pulls may be necessary.
If the engine still does not start
► Push the slide control in the direction of the
arrow on the stop symbol (
h
) to STOP-0.
► Remove the spark plug – see "Spark Plug".
► Dry the spark plug.
► Open the throttle wide.
► Crank the engine several times with the starter
to clear the combustion chamber.
► Refit the spark plug – see "Spark Plug".
► Move the slide control to START.
► Set the choke knob to
e
– even if the engine
is cold.
► Start the engine.
10.5.2
Throttle cable adjustment
► Check adjustment of throttle cable – see chap‐
ter on "Adjusting the Throttle Cable".
10.5.3
Fuel tank run until completely dry
Recommendation: Carry out the following steps
irrespective of the engine's operating condition
before the tank was run dry.
► Turn the choke knob to
g
.
► Go to section on "Starting" and re-start the
engine as described for a cold engine.
11 Operating Instructions
11.1
During break-in period
A factory-new machine should not be run at high
revs (full throttle off load) for the first three tank
fillings. This avoids unnecessary high loads dur‐
ing the break-in period. As all moving parts have
to bed in during the break-in period, the frictional
resistances in the engine are greater during this
period. The engine develops its maximum power
after about 5 to 15 tank fillings.
11.2
During Operation
After a long period of full throttle operation, allow
the engine to run for a short while at idle speed
so that engine heat can be dissipated by the flow
of cooling air. This protects engine-mounted
components (ignition, carburetor) from thermal
overload.
11.3
After Finishing Work
Storing for a short period: Wait for the engine to
cool down. Empty the fuel tank and keep the
machine in a dry place, well away from sources
of ignition, until you need it again. For longer out-
of-service periods – see "Storing the Machine".
12 Cleaning the Air Filter
12.1
If there is a noticeable loss of
engine power
250BA071 KN
► Turn the choke knob to
g
.
► Press in the tab (1) and remove the filter
cover (2).
► Clean away loose dirt from around the filter (3)
and inside the filter cover.
► Remove and check the filter element – replace
it if is dirty or damaged.
► Install the filter element in the filter cover.
► Refit the filter cover.
English
11 Operating Instructions
14
0458-516-0121-B
