Stihl MS 661 C-M User Manual

48 MS 661, MS 661 C-M
7.10 Short Circuit Wire /
with M-Tronic
Removing and Installing
– Remove the shroud, b 6.4
– Remove the rewind starter,
b 9.2
– Remove the control unit, b 7.2
: Take out the screw (1) and pull
the ground wire (2) out of the
guide (arrow).
: Push grommet (1) out in direction
of cylinder and pull wiring
harness (2) out in direction of
cylinder.
– Remove the switch shaft,
b 11.1.1
– Remove the contact spring and
retainer, b 7.12
– Remove the carburetor, b 13.4
– Remove the tank housing,
b 13.11.4
1
1166RA429 TG
2
1
1166RA430 TG
: Pull the M-Tronic wire (1), ground
wire (2) and short circuit wire (3)
out of the guides (arrows).
: Press lug (arrow) on grommet (1)
in direction of cylinder and push it
out sideways.
– Remove the wiring harness with
grommets.
: Remove grommet (1) from the
wiring harness via lateral opening
(arrow) and pull off grommet (2)
in direction of ring terminals.
– Check the wiring harness and
replace if necessary.
1166RA135 TG
1
2
3
1
1166RA431 TG
2 1
1166RA432 TG
: If necessary, pull locking tab (1)
towards wires, open the cover (2)
and take out the wires.
A new wiring harness comes with
the plug and insulated housing
already fitted.
Installing
: If necessary, connect red wire's
flag terminal (1) and black wire's
flag terminal (2) to the insulated
housing (3).
1166RA141 TG
1
2
1166RA142 TG
1
3
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