Husqvarna 545RX Workshop Manual page 11

Electrical system
If no spark occurs even now, remove the
short-circuit cable from the stop switch.
If the plug now sparks, the fault is either in
the stop switch or the short-circuit cable.
Change the switch as needed and check
to see if the cable insulation is damaged.
Still no spark?
Check the ignition cable's connection to
the spark plug cover.
Still no spark?
Check other cables and connections.
Still no spark?
Check the air gap.
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502 51 34-02
If no spark occurs even now, remove the
short-circuit cable from the stop switch.
The stop switch can be easily detached
with a screwdriver.
Use a screwdriver pinch the switch's snap
fastener inside the throttle.
NOTE!
The stop switch has a non locking
design and must be replaced with
one of the same type.
If the plug now sparks, the fault is either in
the stop switch or the short-circuit cable.
Change the switch as needed and check
to see if the cable insulation is damaged.
Still no spark?
Check the spark plug connection.
Remove the spark plug cover and make
sure the ignition cable is not damaged.
Remove a segment of cable if required
to get suffi cient contact at the connection
coil.
Tips!
Spray with silicone to make it easier to
remove the spark plug cover.
Still no spark?
Check other cables and connections for
poor contacts (dirt, corrosion, cable brea-
kage and damaged insulation).
Make sure that the cables are correctly
drawn and lie in the cable grooves.
Do not forget to check the cables in the
throttle too.
See chapter 3 "Throttle".
Tip!
Use an Ohmmeter in order to easily check
if cable breakage has occurred, due to
pinching, for example.
Still no spark?
Dismantle the starter and air guide plate
(refer also to the "Starter" chapter).
Check the air gap between the fl ywheel
magnet and the ignition module. The gap
should be 0.3 mm.
Use a 502 51 34-02 feeler gauge.
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