27
Series 4141 Powerhead
Use clutch screws to secure
puller (1) 4112 890 4502 to
flywheel.
Tighten down center screw to
remove the flywheel.
– Remove Woodruff key from
VA
380RA018
1
crankshaft.
Note:
The flywheel (1) and magnet poles
(2) must not be cracked or damaged
in any way.
Install a new flywheel if necessary.
VA
380RA059
1
2
Installing the flywheel
Important:
Clean crankshaft stub and hole in
flywheel with a standard solvent-
based degreasant containing no
chlorinated or halogenated
hydrocarbons - see 11.
– Install in the reverse sequence.
Tighten down flywheel nut to
19 Nm (14 lbf.ft).
– Adjust air gap between ignition
module and magnets - see 6.2.2.
If the action of the starter rope
becomes very stiff and the rope
rewinds very slowly or not com-
pletely, it can be assumed that the
starter mechanism is in order but
plugged with dirt. At very low
outside temperatures the lubri-
cating 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 paraffin (kerosine) to the
rewind spring.
Then 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 special
care when removing the spring.
Wash all parts in paraffin/kerosine
or white spirit.
Lubricate the rewind spring and
starter post with STIHL special
lubricant - see 11, before installing.
7
Rewind Starter
7.1
General
Summary of Contents for 4141 Series
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