Instruction manual

FS 240, FS 240 R
English
34
The carburetor has been set at the
factory to provide an optimum fuel-air
mixture under most operating
conditions.
Adjusting idle speed
Engine stops while idling
N Turn the idle speed screw (LA)
slowly clockwise until the engine
runs smoothly.
Cutting tool rotates when engine is idling
N Turn the idle speed screw (LA)
slowly counterclockwise until the
cutting attachment stops moving.
At temperatures below +50°F (+10°C)
Preheating the carburetor
Repositioning the shutter allows heated
air to be drawn in from around the
cylinder and mixed with cold air – this
helps prevent carburetor icing.
An arrow (1) on the shroud indicates the
setting of the shutter (2) for summer or
winter operation. Meaning of symbols:
– "Sun" = summer operation
– "Snowflake" = winter operation
N Remove the screw (3) from the
shutter.
N Pull the shutter (2) out of the
shroud.
N Rotate the shutter (2) from the
summer position to the winter
position and refit it.
N Secure the shutter in position with
the screw (3).
At temperatures between
+50°F (+10°C) and +70°F (+20°C)
The machine can normally be operated
in this temperature range with the
shutter (2) in the summer position.
Change the position of the shutter if
necessary.
Adjusting the Carburetor
9926BA015 KN
H
L
LA
Winter Operation
2
1
9926BA016 KN
2
9926BA017 KN
3