Stihl MS 661 C-M User Manual

47MS 661, MS 661 C-M
Fit the wiring harness (two wires) so
that the black wire is at the bottom.
: Fit the wires through the lateral
opening (arrow) in the
grommet (3) so that they are
behind one another
– do not cross the wires.
: Pass the wiring harness (1), ring
terminals first, through the
opening from outside (cylinder
side) and into the carburetor box
: Position the grommet (2) so that
the opening (arrow) is at the top,
then locate its groove and slide it
in sideways until the lug engages
at the other side.
– Pull the wires through until the
insulating tube locates in the
grommet's recess.
1166RA126 TG
1
2
: Push the short circuit wire (1) and
ground wire (2) into the guides
(arrows).
Position the wires next to one
another without crossing over.
: Slip the grommet (1) over the
wiring harness (2) so that slope
(arrow) faces the crankcase.
: Slide the grommet (1) into
position sideways and push it
home until it is properly seated in
the crankcase.
1166RA127 TG
2
1
1166RA128 TG
2
1
1166RA129 TG
1
– Install the tank housing,
b 13.11.4
– Install the carburetor, b 13.4
– Remove the contact spring and
retainer, b 7.12
– Install the switch shaft, b 11.1.1
– check its operation, b 7.12
The grommet (1) must be properly
seated in the opening.
: Position the wiring harness in the
crankcase without any loops.
: Fit the cable lug (1) so that its
crimped side faces outwards and
then push the ground wire (2) into
the guide (arrow).
: Insert and tighten down the
screw (3) firmly.
– Install the ignition module, b 7.3
– Reassemble all other parts in the
reverse sequence.
1166RA130 TG
1
1166RA131 TG
3
1
2

Stihl MS 661 C-M Specifications

General

Idle speed	- RPM
Motor type	2-stroke motor
Chain pitch	3/8 \
Blade length	800 mm
Product color	Black, Grey, Orange
Automatic oiling	Yes
Engine displacement	91.1 cm³
Power source	Gasoline
Sound power level	118 dB
Vibration emission	6.9 m/s²
Sound pressure level	105 dB

Weight and Dimensions

Weight	7400 g