USER
’
S MANUAL Operating Instructions
25
3.Remove the spark plug as shown,
with the spark plug wrench (2)
included in the owner
’
s tool kit.
4. Check that the porcelain
insulator
(3) around the center electrode of
the spark plug is a medium-to-light
tan (the ideal color when the
vehicle is ridden normally).
If the spark plug shows a
distinctly different color, the
engine could be operating
improperly. Do not attempt to
diagnose such problems yourself.
Instead,have a dealer check the
vehicle.
4.
Check the spark plug electrode
for corrosion (4) and excessive
carbon or other deposits, and
replace it if necessary.
Please note that no other spark
plug model is allowed. Using a
different spark plug model can
immediately lead to engine
damage.
6. Measure the spark plug gap with a
wire thickness gauge and, if necessary,
adjust the gap to specification.
Clean the surface of the spark plug
gasket and its mating surface, and
then wipe off any grime from the
spark plug threads.
7. Install the spark plug with the spark
plug wrench, and then tighten it to
the specified torque.
