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STIHL FS 94 R
English
32
If engine is down on power, difficult to
start or runs poorly at idling speed, first
check the spark plug.
Fit a new spark plug after approx. 100
operating hours or earlier if the
electrodes are badly eroded.
Wrong fuel mix (too much engine oil in
the gasoline), a dirty air filter and
unfavorable running conditions (mostly
at part throttle etc.) affect the condition
of the spark plug. These factors cause
deposits to form on the insulator nose
which may result in trouble in operation.
Removing the spark plug
N
Turn screw (1) in cap (2) until cap
can be removed
N
Lay down cap
N
Unplug spark plug boot (3)
N
Unscrew spark plug
Checking the Spark Plug
N
Clean dirty spark plug.
N
Check electrode gap (A) and
readjust if necessary – see chapter
"Specifications."
N
Use only resistor type spark plugs of
the approved range.
Rectify problems which have caused
fouling of spark plug:
–
too much oil in fuel mix,
–
dirty air filter,
–
unfavorable running conditions, e.g.
operating at part load.
WARNING
To reduce the risk of fire and burn injury,
use only spark plugs authorized by
STIHL. Always press spark plug boot (1)
snugly onto spark plug terminal (2) of the
proper size. (Note: If terminal has
detachable SAE adapter nut, it must be
securely attached.) A loose connection
between spark plug boot and ignition
wire connector in the boot may create
arcing that could ignite combustible
fumes and cause a fire.
Installing the Spark Plug
N
Fit the spark plug and tighten it
down firmly.
N
Press the boot firmly onto the spark
plug.
Spark Plug
1
0208BA037 KN
2
3
0208BA038 KN
000BA039 KN
A
2
1
002BA363 KN
Содержание FS 94
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