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1
2
: Pull out the throttle shaft (1) in the
direction of the adjusting screws.
Disconnect and relax the torsion
spring (2) at the same time.
– Plug the bore (arrow) to prevent
the pump piston popping out.
– Clean the throttle shaft and
guides, b 16
2
1
– Check the throttle shaft (1) and
torsion spring (2) and replace if
necessary.
– Note installed position (arrow) of
torsion spring.
The screw (3) must not be loosened
– it guarantees the factory-set
position of the lever.
MS 171, MS 181, MS 211
All manuals and user guides at all-guides.com
1
– Remove the pump piston (1),
spring (2) and strainer (3). Check
the parts and replace if
necessary.
: Fit the strainer (3) in the bore first.
Then fit the spring (2) and pump
piston (1) in the bore (arrow).
3
1
: Push the throttle shaft (1) with
torsion spring into the carburetor
body from the side with the
adjusting screws.
: Use a suitable tool to press the
accelerator pump piston into the
bore (arrow) and then push the
throttle shaft all the way through.
2 3
: Position torsion spring on
: Fit the E-clip (1).
: Turn the throttle shaft (1) counter-
– Hold the throttle shaft in the
: Place the throttle shutter (1),
carburetor body's shoulder
(arrow).
1
2
clockwise until its flat side is
visible.
preloaded position.
notch (arrow) first and the hole
(2) on the left, on the flat side of
the shaft – the marking must be
visible.
1
83
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