Ignition Module - Stihl FS 120 Manual

5/20/2018
- Slip the rubber boot off the
ignition lead.
- Cut new ignition lead to length
(see parts list or cut to same
length as old lead).
•
Use a pointed tool (awl or gimlet)
to pierce the center of the
ignition lead that is to be scre-
wed into the module.
- Slip the rubber boot over the
lead.
- Pack the high voltage output with
STIHL multipurpose grease -
13.2.
Important: Do not use graphite
grease (Molykote) or silicone
insulating paste for this job.
- Screw home the ignition lead.
- Fit rubber boot on the high
voltage output.
- Fit cable retainer and spark plug
boot.
- Fit the ignition module -
5.3.3.
FS 120, 200, 300, 350, 400, 450, FR 350, 450
http://slidepdf.com/reader/full/stihl-fs-350-service-manualpdf
STIHL FS 350 Service manual.pdf - slidepdf.com
5.3

Ignition Module

2
The ignition module accommo-
dates all the components required
to control ignition timing.
FS 120...350, FR 350
There are two electrical connec-
tions on the coil body:
1. the high voltage output (1) with
ignition lead (2)
2. the connector tag (3) for the
short circuit wire
A vibration damping pad is bonded
to the side of the ignition module.
A
V
2
4
1
A
R
8
3
3
FS 400/450, FR 450
There are two electrical connec-
tions on the coil body:
see
1
1. the high voltage output (1)
2. the connector tag (2) for the
see
short circuit wire
Accurate testing of the ignition
1
module is only possible with
sophisticated test equipment. For
this reason it is only necessary to
carry out a spark test in the work-
shop. A new ignition module must
be installed if no ignition spark is
obtained (after checking that
A
wiring and stop switch are in good
V
4
5
0 condition).
A
R
3
0
5
2
A
V
5
9
0
A
R
2
0
5
2
25
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