41MS 461, MS 461-R
7. Ignition System
Exercise extreme caution when
troubleshooting and carrying out
maintenance or repair work on the
ignition system. The high voltages
which occur can cause serious or
fatal accidents.
Troubleshooting on the ignition
system should always begin at the
spark plug, b 3.5
– Remove the rewind starter,
b 8.2
The electronic (breakerless) ignition
system basically consists of an
ignition module (1) and flywheel (2).
7.1 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.
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7.2 Install new ignition
module
The ignition module accommodates
all the components required to
control ignition timing. There are
two electrical connections on the
coil body:
– the high voltage output (1) for the
ignition lead
– the connector tag (2) for the short
circuit wire
Testing in the workshop is limited to
a spark test. A new ignition module
must be installed if no ignition spark
is obtained (after checking that
wiring and stop switch are in good
condition).
– Remove the rewind starter,
b 8.2
– Remove the filter cover and pull
off the spark plug boot.
: Take out the screws (arrows).
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: Remove the ground wire (1).
– Remove the ignition module.
: Unlock and remove the short
circuit wire's terminal (1).
: Disconnect the short circuit
wire (2) from the retainer (3).
: Push back the grommet on the
ignition module and unscrew the
ignition lead.
A new ignition module is supplied
with ignition lead, grommet and
cable retainer.
– Check the cable retainer and
replace if necessary.
: Use a suitable punch to drive out
the retainer (1).
– Reassemble in the reverse
sequence.
– Check the spark plug boot and
ignition lead, and replace if
necessary, b 7.4
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