Ignition System; Ignition Timing; Ignition Module - Stihl GS 461 Manual

6.

Ignition system

Exercise extreme caution while
carrying out maintenance and repair
work on the ignition system. The
high voltages which occur can
cause serious or fatal accidents.
Troubleshooting on the ignition
system should always start with the
spark plug, b 3.5
– Remove starter, b 7.2
2 1
The electronic ignition system
basically consists of an ignition
module (1) and flywheel (2).
6.1

Ignition timing

Ignition timing is fixed and cannot
be adjusted during repair work.
Since there is no mechanical wear
in these systems, ignition timing
cannot get out of adjustment during
operation.
38
6.2

Ignition module

The ignition module accommodates
all the components required to
control ignition timing. There are
two electrical connections on the
coil body:
– High-voltage output (1) for the
ignition lead
– Connector tag (2) for the short-
circuit wire
Testing of the ignition module is
limited to a spark test. A new ignition
module must be installed if no
ignition spark is obtained (after
checking that the wiring and stop
switch are in good condition).
– Remove starter,
b 7.2
– Remove filter cover and pull off
spark plug boot, b 4.2
: Unscrew the screws (arrows)
: Disconnect the ground wire (1)
– Remove the ignition module.
1
2
: Unlock the plug (1) of the short
circuit wire and pull off
: Unhook short circuit wire (2) on
cable holder (3)
: Slide grommet away from ignition
module and unscrew ignition lead
A new ignition module is delivered
with ignition lead, grommet and
cable holder.
1
– Inspect cable holder, replace if
necessary
1
: Drive cable holder (1) out with a
suitable punch
– Reassemble parts in reverse
order
– Examine spark plug boot and
ignition lead, replace if
necessary, b 6.4
3
2
1
GS 461