Spark Plug - Stihl BT 130 Instruction Manual

English
Auger turns when idling
Turn the idle speed adjusting
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screw (LA) slowly counterclockwise
until the auger stops turning
WARNING
If the auger continues to keep moving in
idle even after adjustment, have the
machine checked by a servicing dealer.
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Spark Plug

If the engine is down on power,
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difficult to start or runs poorly at idle
speed, first check the spark plug.
Fit a new spark plug after about 100
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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
Set the slide control to STOP-0
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Unplug spark plug boot (1)
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Unscrew spark plug
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Checking the spark plug
Clean dirty spark plug.
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Check electrode gap (A) and
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readjust if necessary – see
"Specifications".
Rectify the problems which have
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caused fouling of the spark plug.
Possible causes are:
Too much oil in fuel mix.
–
Dirty air filter.
–
Unfavorable running conditions.
–
A
BT 130