When removing or installing a spark
plug, be careful not to damage the
in- sulator. A damaged insulator
could allow external sparks, which
could lead to explosion or fire.
[EWM00561]
3. Be sure to use the specified spark plug,
otherwise the engine may not operate
properly. Before fitting the spark plug,
measure the electrode gap with a wire
thickness gauge; replace it if out of
spec- ification.
the correct torque is 1/4 to 1/2 a turn past
fin- ger-tight. Have the spark plug adjusted
to the correct torque as soon as possible
with a torque-wrench.
HD37450
Checking fuel filter
Check the fuel filter periodically. If any water
or foreign matter is found in the filter, clean
or replace it. For cleaning or replacement of
the fuel filter, consult your Hidea dealer.
HD29044
Inspecting idle speed
EWM00451
1. Spark plug gap
2. Spark plug part
number
3. Spark plug I.D.
mark (NGK)
Spark plug
gap:
0.8–0.9 mm
(0.031–
0.035 in)
4. When fitting
the plug,
wipe off any
dirt from the
threads, and
then screw it
in to the
correct
torque.
TIP:
If a torque-
wrench is not
available when
you are fitting a
spark plug, a
good estimate
of
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