Stihl MS 661 C-M User Manual

76 MS 661, MS 661 C-M
9. Rewind Starter
9.1 General
If the action of the starter rope
becomes very stiff and the rope
rewinds very slowly or not
completely, it can be assumed that
the starter mechanism is in order
but plugged with dirt. At very low
outside temperatures the lubricating
oil on the rewind spring may thicken
and cause the spring windings to
stick together. This has a
detrimental effect on the function of
the starter mechanism.
In such a case it is sufficient to apply
a few drops of a standard solvent-
based degreasant (containing no
chlorinated or halogenated
hydrocarbons) to the rewind spring.
On versions with a momentary
contact stop switch, push Master
Control lever all the way in direction
of STOP or 0 and hold it there
before operating the starter rope.
Carefully pull out the starter rope
several times and allow it to rewind
until its normal smooth action is
restored.
Before installing, lubricate the
rewind spring and starter post with
STIHL special lubricant, b 16.
If clogged with dirt or pitch, the
entire starter mechanism, including
the rewind spring, must be removed
and disassembled. Take particular
care when removing the rewind
spring.
– Clean all components.
9.2 Rewind Starter
Removing and Installing
: Take out the screw (1) and
screws (arrows).
– Lift the hand guard a little and
remove the fan housing.
– Reassemble in the reverse
sequence.
9.3 Pawls
– Remove the rewind starter,
b 9.2
– Relieve tension of rewind spring,
b 9.4
: Carefully ease the spring clip (1)
off the starter post.
– Pull the pawls out of the rotor.
1
1166RA208 TG1166RA209 TG
1
Installing
: Fit the new pawls in the bores
(arrows) and lubricate the
pegs (1) with STIHL grease,
b 16
: Install the spring clip (1) so that
its loops (arrow) are parallel to
the pawls and engage the
pegs (2).
Check operation
– Pull the starter rope, the rotor
turns and the pegs on the pawls
move in the direction of spring
loops – the pawls move
outwards.
– Reassemble all other parts in the
reverse sequence.
1
1166RA210 TG
1
1166RA211 TG
1
2
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