Husqvarna 243RJ Workshop Manual page 14

2
12
Electrical system
Still no spark?
Check other cables and connections.
Still no spark?
Check the air gap.
See "Dismantling" below.
0.3
502 51 34-02
Adjust the air gap.
502 71 27-02
Dismantling
Dismantle the air fi lter cover, the spark
plug, the starter and the cylinder cover.
Unhook the throttle cable (A) from the car-
burettor and disconnect the short-circuit
cable (B).
Still no spark?
Check other cables and connections for
poor contacts (dirt, corrosion, cable brea-
kage and damaged insulation).
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?
Check the air gap between the fl y wheel
magnet and the ignition module.
The gap should be 0.3 mm.
Use air gap gauge 502 51 34-02.
See "Dismantling" below.
Adjust the air gap to the right measure-
ment.
• Loosen the screws.
• Insert the feeler gauge and press the
ignition module against the fl ywheel.
• Tighten the screws and check the air
gap once again.
If there is still no spark, the ignition system
should be replaced.
Dismantling
The following components must be
dismantled for the ignition system to be
accessible:
Air fi lter cover, spark plug, starter and
cylinder cover.
Unhook the throttle cable (A) from the car-
burettor and disconnect the short-circuit
cable (B).