SPARK PLUG
• Inspect every 100
hours
(6 months).
• Replace every 200
hours
(12 months).
Standard
spark
plug:
NGK CR6HSA
:CAUTION!
Only
resistor
(R)
type
spark
plugs
must
be used
with
th.is engjne.
Using
a
non-resistor
spark
plug
will
cause
ignition
system
malfunctions.
CARBON DEPOSIT
lnspectfor a carbon deposit on
the
spark plug bases.
If carbon
is
present, remove carbon with a spark plug cleaning
machine or by
carefully using a pointed tool.
SPARK
PLUG GAP
Measureforthe
plug gap using the thickness gauge.
Adjustto within the
$peciflec;l
range lf the gap
is
out of the speci-
fication.
Spark
plug
gap: - 0.7
mm
(0.024-
0.028 in)
triiBti
09900-20803:
Thickness
gauge
CONDITION OF ELECTRODE/INSULATOR
Check the electrode and insulator condition.
If the electrode
is
extremely worn or burnt, replace the spark
plug.
If
the spark plug has a broken insulator, damaged threads, etc.,
replace the spark plug.
icAUTIONI
Confirm
the thread size and reach when replacing the
plug.
If
the
reach
is
too
short, carbon
will
be
deposited
on
the threaded
portion
of
the
plug
hole
resulting
in
possible
engine damage.
Spark plug:
11
N·m
(1.1
kg-m, 8.0 lb-ft)
PERIODIC
MAINTENANCE
2-7
-=
Ga
p
t
\S:
t
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