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MAINTENANCE
Muffler
NOTE!
Some lnuJ:flers are l:]tted with a catalytic converter. See
"TaWndca!data"to see whether your machine is fitted with a
catalytic converten
'lhe muffler is designed to
dampen the noise level and
to direct the exhaust filmes
away from the user. The
exhaust fumes are hot and
can contain sparks, which
can result in fire if the
exhaust fimles are directed
towards a dr), and
inflammable material. Some
mufflers are equipped with a
special spark arrest screen. I[
your machine is fitted with
this wpe of screen it should
be cleaned regnlarl> This is
done using a wire brush. On
mufflers without a catalytic
converter _he screen should
be cleaned weekly; or
replaced if necessar> On
mufflers fitted with a
catalytic converter the
screen should be checked
and cleaned monthly. If the
screen is damaged it should
be l, placed. If the screen is
frequently blocked, this can
be a sign that the function
of the catalytic converter is
impaired. Contact your
dealer to inspect, the muffler.
A blocked screen will cause
the engine to overheat
resulting in damagc to the
cylinder and piston. Also see
under _l,]iah*,'_.,zla:xv'[
NOTE!
Never usea machine with a defectivemuffler.
Cooling system
To maintain as low opera-
ting temperature as possible
the engine is equipped with
a cooling system.
The cooling system consists
off
1.An air intake on the
starter unit.
Z Cooling fins on the
flywheel.
3. Cooling fins on the
cylinder
4. Cylinder cover (leads cold
air onto the cylinder).
Clean the cooling system using a brush at least once a week, in
difficult conditions more often.
A dirty or blocked cooling system leads to the engine
overheating resulting in damage to the cylinder and piston.
Spark plug
The condition of the spark
plug is affected by:
• An incorrect carbnrettor
setting.
• An incorrect fuel
mixture (too much or
f:aulty oi!).
• A dirty air tiher.
0,5 mm
deposits on the spark plug
electrode that may result in
malfunction or starting
diilicuhies,
If the machine is low on power, difficult to start or runs
poorly while idling always check the spark plug first.
][ the spark plug is dirty, clean it and at the same time check
that the electrode gap is 0,5 ram. Tile spark plug should be
changed after about one month of operation or earlier if
necessary.
NOTE! Always use the recommended type of spark plug, An
incorrect spark plug can damage the cylinder/piston.
17 English
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