Short Circuit Wire; Testing; Removal And Installation - Stihl MS 441 Manual

: Make sure that the machined key
(arrow) engages the slot in the
crankshaft.
– Adjust clearance between
ignition module and flywheel,
b 9.1.1.
– Reassemble all other parts in the
reverse sequence.
– Tightening torques, b 3.5.
64
9.6

Short circuit wire

9.6.1

Testing

If spark plug, ignition lead and spark
plug boot are in order, test the short
circuit wire.
– Remove fan housing, b 10.2.
: Disconnect short circuit wire (1).
– Connect ohmmeter to ground
(arrow) and short circuit wire (1).
– Set switch shaft to "$".
The measured resistance must be
approx. 0 Ω. If the value is
significantly higher, a break has
occurred and the wire must be
replaced, b 9.6.2.
– Set switch shaft to "#".
The measured resistance must be
infinitely high, otherwise replace the
short circuit wire, b 9.6.2.
Test ignition system in accordance
with flow chart if no fault is found,
b 9.8.
– Reassemble in the reverse
sequence.
9.6.2

Removal and installation

– Remove fan housing,
b 10.2.
– Remove ignition lead from guide,
b 9.1.1.
– Remove filter base, b 14.1.2.
– Remove switch shaft, b 12.1.
1
– Remove carburetor support,
b 14.6.1.
: Disconnect short circuit wire (1)
and remove it from the cable
guide (arrows).
: Ease out the grommet (1).
1
1
MS 441, MS 441 C