Stihl MS 650

58 MS 650, MS 660
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.
Carefully pull out the starter rope
several times and allow it to rewind
until its normal smooth action is
restored.
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 spring.
Clean all components – b 17.
Before installing, lubricate the
rewind spring and starter post with
STIHL special lubricant – b 17.
: Remove the screws (arrows)
from the fan housing.
– Carefully push the hand guard
upwards.
– Pull the lower edge of fan
housing away from the
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crankcase and remove it
downwards.
Reassemble in the reverse
sequence.
The hand guard is secured to the
fan housing and crankcase with the
IS-M5x40 screw.
– Tighten down the screws firmly –
b 3.5
– Remove the fan housing with
rewind starter – b 8.2
: Carefully ease the spring (1) off
the starter post.
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: Pull the pawls (1 + 2) out of the
rope rotor.
– Lubricate pegs of new pawls with
grease – b 17
Reassemble in the reverse
sequence.
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8. Rewind Starter
8.1 General
8.2 Removing and Installing 8.3 Pawls