Owner's Manual

STIHL FS 94 R
English
29
The carburetor of the machine has been
adjusted for optimum performance and
fuel efficiency in all operating states at
the factory.
Setting idle speed
Engine stops when idling
N Turn the idle speed adjusting
screw (LA) slowly clockwise until
the engine runs smoothly.
Cutting attachment turns when idling
N Turn the idle speed adjusting
screw (LA) slowly counterclockwise
until the cutting attachment stops
turning
In some countries the muffler is
equipped with a spark arresting screen.
If the engine is down on power, check
the spark arresting screen in the muffler.
N Wait for the muffler to cool down.
N Take out the screw (1).
N Lift the spark arresting screen (2)
and pull it out.
N Clean the spark arresting screen. If
the screen is damaged or heavily
carbonized, fit a new one.
N Refit the spark arresting screen.
N Insert screw and tighten it down
firmly.
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
Adjusting the Carburetor
0208BA036 KN
Spark Arresting Screen in
Muffler
1191BA017 KN
1
2
Spark Plug
1
0208BA037 KN
2