CF MOTO CF500-5, Service Manual, Page: 66 / 254

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3.Checks & Adjustment
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3 3
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In case of carbon deposit, clean with a proper tool.
SPARK PLUG GAP
Measure the spark plug gap with a feeler gauge.
Out of specification: ¡ú Adjust
Spark plug gap: 0.8-0.9mm
Caution:
Check the thread size and reach when replacing the
spark plug. If the reach is too short, carbon will be
deposited on the screw portion of the spark plug hole
and engine damage may result.
Installation:
Caution:
To avoid damaging the cylinder head threads; first,
tighten the spark plug with fingers, and then tighten it
to the specified torque using the spark plug wrench.
Tightening Torque: 18 N.m
Tool: Spark Plug Wrench, Feeler Gauge
Air Filter
Inspect every 50 hours or 500 km, clean it every
1000km if necessary.
If the air cleaner is clogged with dust, intake resis-
tance will be increased, with a resultant decrease in
power output and an increase in fuel consumption.
Check and clean the air filter as following:
Remove fixing clamp1 and top cover2
Note:
Be careful not to drop the o-ring into the air filter box
that is attached to the air filter top cover.
Loosen screw3, remove filter element4, separate
support5, filter element6 and filter element seat7.
-Fill a wash pan of a proper size with a non-flam-
mable cleaning solvent A. Immerse the filter element
in cleaning solvent and wash it.
-Press the filter element between the palms of both
hands to remove the excess solvent. Do not twist or
wring the element or it will tear.
-Immerse the element in engine oil B, and then
squeeze out the excess oil leaving the element slightly
wet.