Operation Manual
138 MS 241 C
13.6.6 Lever of the choke shaft
– Remove the carburetor, b 13.5
– Troubleshoot carburetor, b 3.6
: Push out circlip (1)
: Remove lever (2)
Installation
: Orient lever (1) so that it faces
the throttle shaft and the flat
face (arrow) faces the solenoid
valve
: Slide the lever (1) onto the choke
shaft (2) so that it aligns with the
flat faces of the choke shaft
: Push circlip (3) into place
2410RA369 TG
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2410RA370 TG
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2
– Install carburetor, check correct
functioning
– Lever (1) must actuate the
microswitch, b 13.5, b 8.2.5
– Reassemble remaining parts in
reverse order
13.7 Carburetor adjustment
The carburetor is adjusted by the
M-Tronic, thus no manual
adjustments to the carburetor are
necessary or possible.
Position of the special bolt (1) must
not be changed
– changing the factory default
setting leads to impaired engine
performance.
Solenoid valve (2) must not be
dismantled.
The solenoid valve must not be
twisted when disconnecting the
plug; if necessary, hold the solenoid
valve in place during disconnection
of the plug.
If the solenoid valve is twisted, twist
it back clockwise as far as it will go.
– In case of malfunctions, check
M-Tronic, b 8.2
2410RA377 TG
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2
13.8 Carburetor bracket
– Remove filter base with attached
wiring harness and lay it aside,
b 8.4
– Remove switchgear and
carburetor and lay them aside,
b 8.4
: Remove the washer (1)
: Pull throttle rod (1) out of the
guide (arrow) and set it aside
2410RA508 TG
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2410RA509 TG
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