Lever On; Choke Shaft; 13.5.7 Lever On Choke Shaft; Switch Unit - Stihl MS 661 Manual

1
2
: Remove the E-clip (1) and pull off
the lever (2).
Installing
3
2
1
: Position the lever (1) so that its
hook engages the lever on the
choke shaft (arrow).
: Push the lever (1) onto the
throttle shaft (2) so that it
engages the flats on the end of
the shaft.
: Fit the E-clip (3).
– lever (1) must engage
lever (4) (arrow).
– Reassemble all other parts in the
reverse sequence.

13.5.7 Lever on Choke Shaft

– Remove the carburetor, b 13.4
– Carburetor troubleshooting,
b 3.6
106
: Take out the screw (1) and pull
off the lever (2).
Installing
4
: Position the lever (1) so that it
points in the direction of the
throttle shaft – on models without
M-Tronic, fit lever with lobe on its
tip (arrow).
: Push the lever (1) onto the choke
shaft so that it engages the flats
on the end of the shaft.
: Insert and tighten down the
screw (2) firmly.
– Reassemble all other parts in the
reverse sequence.
13.5.8 Lever on Choke Shaft /
1
– Remove the carburetor, b 13.4
– Troubleshooting, b 8.3
Carburetor is shown from below for
2
greater clarity.
2
: Remove the E-clip (1) and pull off
the lever (2) with torsion
spring (3).
1
– Inspect lever and torsion spring,
replace if necessary.
– Inspect the switch unit, replace if
necessary, b 8.3.3, b 8.5
– Check the solenoid valve,
replace if necessary, b 8.3.4,
b 8.6
Installing
: Fit the torsion spring (1) so that
its leg (arrow) rests against the
rib on the carburetor.

Switch Unit,

Models with M-Tronic

3 1
2
1
MS 661, MS 661 C-M