Winter Operation - Stihl MS 171 Instruction Manual

Winter Operation

Winter shutter (MS 211 only)
At temperatures below +50°F (+10°C):
N Squeeze the throttle trigger and
move the Master Control lever to
cold start l .
N Slide the lock to the rear.
N Pull the shroud off to the rear.
MS 171, MS 181, MS 181 C, MS 211, MS 211 C
1
2
N Use the combination wrench to turn
the shutter, next to the spark plug,
45° counterclockwise.
1 Winter operation
2 Summer operation
N Refit the shroud and secure it with
the lock.
Heated air is now drawn in from around
the cylinder and mixed with cold air –
this helps prevent carburetor icing.
At temperatures above
+68°F (+20°C), return the shutter
to the summer position. This is
necessary to avoid engine running
problems and overheating.
Fitting the Cover Plate
(Special accessory, not for Easy2Start
models)
2
2
1
N
Place the cover plate (1) in position
and secure it with the screws (2).
N If your saw is very cold, start the
engine and run it until it reaches
normal operating temperature.
MS 211 only: When the cover plate is
fitted, the winter shutter may be in either
the winter or summer positions. Move it
to the winter position when temperatures
drop below +50°F (+10°C).
English
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