Operator`s manual

7
Lubrication and Maintenance
Air Cleaner Service
A dirty filter will restrict air flow to the carburettor
and reduce engine power. Operating without the
air cleaner fitted or with a damaged filter will allow
dirt to enter the engine causing rapid wear, which
will not be covered under warranty.
Unclip and remove the air cleaner cover. Unscrew
the lower wing nut and remove the filter assembly.
Remove the outer foam element from the paper
element.
Inspect both elements and replace if damaged.
Always replace the paper element at the
scheduled service interval. Clean both elements if
they are suitable for reuse.
Tap the paper element several times on a hard
surface to remove dirt, or blow compressed air not
exceeding 200kPa (30 psi) through the element
from the inside. Never brush dirt off as this will
force dirt into the fibres.
Rinse the foam element in warm soapy water or
clean in non-flammable solvent (not petrol) and
allow to dry. When dry, dip the element in clean
engine oil then squeeze out all excess. The engine
will smoke if too much oil is left in the foam.
Clean the interior of the air cleaner cover and base
with a moist cloth. Take care to avoid dirt entering
the air duct.
Re-install the filter assembly on the air cleaner
base, then install the air cleaner cover and lock the
clips back into position.
Spark Plug Service
Disconnect the spark plug lead and remove any
dirt from around the plug. Remove the plug with a
13/16 inch spark plug wrench.
Inspect the spark plug and clean any carbon from
the electrodes with a wire brush. Replace if the
electrodes are worn or the insulator is damaged.
Measure the electrode gap with a spark plug
gauge or feelers and adjust as necessary by
carefully bending the side electrode - refer diagram
below for gap dimension.
Install the plug carefully by hand to avoid cross-
threading. Then after it is seated tighten with the
spark plug wrench to compress the gasket. If
refitting a used plug tighten 1/8 to 1/4 turn after
seating or if a new plug 1/2 turn. Refit the spark
plug lead.
The recommended plug is NHSP LD F6RTCU.
SPARK PLUG GAP
0.28 – 0.31 in
(0.70 – 0.80 mm)
Air Filte
r
s
Cove
r
Air Filter
Base