Operating Instructions; Replacing The Air Filter - Stihl BR 450 Instruction Manual

Check that the spark plug boot is
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properly connected.
Repeat the starting procedure.
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Fuel tank run until completely dry
After refueling, press the manual
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fuel pump bulb at least five times –
even if the bulb is filled with fuel.
Set the choke knob according to
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engine temperature.
Now start the engine.
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BR 450, BR 450 C

Operating Instructions

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 helps protect engine-
mounted components (ignition,
carburetor) from thermal overload.
After Finishing Work
Storing for a short period: Wait for the
engine to cool down. 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".

Replacing the Air Filter

Dirty air filters reduce engine power,
increase fuel consumption and make
starting more difficult.
If there is a noticeable loss of engine
power
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2
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Turn the choke knob to c .
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Loosen the screws (1).
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Remove the filter cover (2).
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English
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