Engine Running Behavior; Storing The Machine - Stihl BG 50 Instruction Manual

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– Too much oil in fuel mix.
– Dirty air filter.
– 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.
9.3 Installing the Spark Plug
12
► Screw the spark plug (3) into the cylinder and
fit the boot (2) (press it down firmly).

10 Engine Running Behavior

If engine running behavior is unsatisfactory even
though the air filter is clean and the carburetor is
properly adjusted, the cause may be the muffler.
1
Have the muffler checked for contamination (car‐
bonization) by your servicing dealer.
STIHL recommends that you have servicing and
repair work carried out exclusively by an author‐
ized STIHL servicing dealer.

11 Storing the Machine

If out of use for periods of about 30 days or lon‐
ger
► Drain and clean the fuel tank in a well ventila‐
ted area.
► Dispose of fuel properly in accordance with
local environmental requirements.
► If a manual fuel pump is fitted: Press the man‐
ual fuel pump at least 5 times.
► Start the engine and run it at idling speed until
it stops
► Thoroughly clean the machine, especially the
cylinder fins and air filter.
► Store the machine in a dry and safe location.
Keep out of the reach of children and other
unauthorized persons
2
3
10 Engine Running Behavior
0458-425-0121-D