Ignition Module; Removal And Installation - Stihl MS 441 Manual

9.1

Ignition module

2
The ignition module accommodates
all the components required to
control the ignition timing. Only two
electrical connections emerge from
the ignition module.
– High-voltage output (1) with
permanently connected ignition
lead.
– Connector tag (2) for short circuit
wire.
Testing of the ignition module only
encompasses a spark test. The
ignition module must be replaced if
an ignition spark is not obtained
(although wiring and stop switch are
intact).
The ignition timing is fixed and
cannot be adjusted.
Since there is no mechanical wear
in these systems, the ignition timing
cannot become maladjusted during
operation.
58
9.1.1

Removal and installation

– Remove fan housing,
b 10.2.
1
– Remove pre-separator, b 9.7.
– Release clamps (arrows).
: Remove carburetor box
cover (1).
1
: Pull boot off spark plug (1).
: Remove ignition lead (1) from
rubber buffer (2) and cable guide
(arrow).
1
: Disconnect short circuit wire (1).
: Take out screws (arrows).
: Remove ignition module (1).
2
1
1
1
MS 441, MS 441 C