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14 Engine Running Behavior
– Unfavorable running conditions.
WARNING
Arcing may occur if the adapter nut (1) is loose
or missing. Working in an easily combustible or
explosive atmosphere may cause a fire or an
explosion. This can result result in serious inju‐
ries or damage to property.
► Use resistor type spark plugs with a properly
tightened adapter nut.
13.3
Installing the Spark Plug
► Fit the spark plug and tighten it down firmly.
► Press the boot firmly onto the spark plug.
2
► Fit the cap (1), insert the screw (2) and tighten
it down firmly.
14 Engine Running Behavior
If engine running behavior is still unsatisfactory
after the air filter has been serviced and the car‐
buretor and throttle cable have been adjusted
correctly, the cause may also be in the muffler.
Have the muffler checked for contamination (cok‐
ing) by a servicing dealer!
STIHL recommends that maintenance and repair
work be carried out only by authorized STIHL
dealers.
15 Storing the Machine
For periods of 3 months or longer
0458-422-0121-D
1
1
► Drain and clean the fuel tank in a well ventila‐
ted area.
► Dispose of fuel properly in accordance with
local environmental requirements.
► Run the engine until the carburetor is dry – this
helps prevent the carburetor diaphragms stick‐
ing together.
► Clean the rakes and tines and check them for
damage
► Thoroughly clean the machine – pay special
attention to the cylinder fins and air filter.
► Store the machine in a dry, high or locked
location, out of the reach of children and other
unauthorized persons.
16 Inspection and Mainte‐
nance by User
16.1
Adjusting the Throttle Cable
The throttle cable can be adjusted only when the
machine is properly assembled. The control han‐
dle must be in the normal operating position.
If the following adjustments do not produce the
required result, have your servicing dealer repair
the machine. STIHL recommends an authorized
STIHL servicing dealer.
16.1.1
Checking Adjustment of Throttle Cable
Error: Engine speed increases when only the
throttle trigger is pulled.
► Start the engine.
► Pull the throttle trigger (1) – do not press down
the throttle trigger lockout (2).
If the engine speed increases or if the attach‐
ment runs, the throttle cable has to be adjusted.
► Shut down the engine.
English
2
1
17
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