7
EN
a) Clean around the lter cover (1).
b) Remove the cover (1) by releasing the tabs (2).
c) Remove the ltering element (3 or 3a).
d) Block the inlet duct (5) with a rag to prevent any
dirt from entering.
e) Carry out maintenance on the ltering element
as described below for each type.
f) Clean inside the lter housing (4) to get rid of
any dust, debris or dirt, taking care not to push
anything into the induction pipe (5).
g) Put the ltering element (3 - 3a) back in place
and close the cover (1).
• Sponge ltering element (3)
Keep the ltering element clean and soaked in oil.
Replace it if it is disintegrating, cut or broken.
IMPORTANT
Do not use compressed air
to clean the ltering element.
– Clean the sponge ltering element with water
and detergent and dry it with a clean cloth.
– Soak the ltering element in 2 tablespoonfuls
of clean engine oil and wring it well to distribute
the oil evenly.
– Remove any excess oil with a clean cloth.
If you need to replace the ltering element, oil the
new lter as described above.
• Cartridge ltering element (3a)
– Blow compressed air from the inside to re mo ve
dust and debris.
6.6
SPARK PLUG SERVICE
a) Remove the spark plug (1) using a spark plug
socket wrench (2).
b) Clean the electrodes (3) with a metal brush and
remove any carbonaceous build-up.
c) Using a thickness gauge (4), check for the right
gap (0.6 - 0.8 mm) between the electrodes.
d) Install the spark plug (1) and tighten with a
socket wrench (2).
Replace the spark plug if the electrodes are burnt
or if the porcelain is broken or damaged.
WARNING!
Fire hazard! Do not check
the ignition system with spark plug remov-
ed.
IMPORTANT
Use only spark plugs of the
re com mended type (see “Technical specica-
tions”).
6.7
ADJUSTMENT OF THE
ACCELERATOR CABLE (if provided)
If the engine does not reach its maximum rpm with
the throttle control in «FAST» position, this is likely
due to an out-of-phase connection between the
accelerator lever and the governor lever.
To restore the correct phase:
a) Stop the engine, remove the spark plug cap
and wait until the engine has cooled.
b) Loosen the screw (1) of the clamp (2) so that
the cable casing (3) is free to move.
c) Move the throttle control to «CHOKE».
d) Move governor control lever (4) forward as far
as possible and, by keeping it in this position,
lock the casing (3) full tightening the screw (1)
of the clamp (2).
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