FS 300, FS 350, FS 400, FS 450, FS 480
English
26
Switching on the handle heating
(depending on model)
N Move the switch in the left handle to
Z – move the switch back to 0 to
turn off the heating.
If the handle temperature feels too high
– move the switch to 0.
There is no risk of overheating during
long periods of operation. The heating
system is maintenance-free. Contact
your dealer if you have any problems.
STIHL recommends a STIHL servicing
dealer.
N If the engine is down on power,
difficult to start or runs poorly at idle
speed, first check the spark plug.
N Fit a new spark plug after about 100
operating hours – or sooner if the
electrodes are badly eroded. Install
only suppressed spark plugs of the
type approved by STIHL – see
"Specifications".
Removing the Spark Plug
N Move the slide control to STOP-0.
FS 300, FS 350
N Pull off the spark plug boot (1).
N Unscrew the spark plug.
FS 400, FS 450, FS 480
N Pull off the spark plug boot (1).
N Unscrew the spark plug.
Checking the spark plug
N Clean dirty spark plug.
N Check electrode gap (A) and
readjust if necessary – see
"Specifications".
N Rectify the problems which have
caused fouling of the spark plug.
Possible causes are:
– Too much oil in fuel mix.
– Dirty air filter.
– Unfavorable running conditions.
Electric Handle Heating
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