Engine Running Behavior - Stihl BR 380 Instruction Manual

Install a new spark plug after about
N
100 operating hours – or sooner if
the electrodes are badly eroded.
Install only suppressed spark plugs
of the type approved by STIHL – see
"Specifications".
To reduce the risk of arcing and fire
If the spark plug comes with a
detachable adapter nut:
Screw the adapter nut (1) onto the
N
thread and tighten it down firmly.
BR 380
1
On all spark plugs
Always press the boot (2) firmly on
N
to the spark plug (3).

Engine Running Behavior

If engine running behavior is
unsatisfactory even though the air filter
2
is clean and the carburetor is properly
adjusted, the cause may be the muffler.
Have the muffler checked for
contamination (carbonization) by your
servicing dealer.
STIHL recommends that you have
servicing and repair work carried out
exclusively by an authorized STIHL
3 servicing dealer.
English
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