Stihl MS 650

79MS 650, MS 660
– Remove the carburetor –
b 12.2.1
: Close the choke shutter (2)
against spring pressure.
: Take out the screw (1).
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1
– Remove the choke shutter.
: Remove the E-clip (1).
– Pull out the choke shaft.
Examine parts for damage an wear
and replace if necessary.
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Installing
: Push the spring (1) onto the
choke shaft (2) and engage it in
position.
: Fit the choke shaft, lever (3)
pointing down, in the carburetor –
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3
2
below the idle speed screw (LA).
: Position the spring against the
edge of the carburetor body
(arrow) and push home the choke
shaft at the same time.
– Fit the E-clip.
– Rotate choke shaft against spring
pressure to the choke position.
– Fit the choke shutter.
: Check that the stamped digits
face you when the choke shutter
is closed. The indentations
(arrows) must be parallel to the
choke shaft.
: Check that the notch in the choke
shutter points towards the end
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cover (1).
– Install the carburetor – b 12.2.1
– Carry out user adjustment –
b 12.4
12.3.6 Removing and Installing
the Choke Shaft