Benelli 249R, Руководство пользователя

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19 - 20
The spark plug is an important engine component,
which should be checked periodically, preferably by
a dealer. Since heat and deposits will cause any
spark plug to slowly erode, it should be removed and
checked in accordance with the periodic mainte-
nance. In addition, the condition of the spark plug
can reveal the condition of the engine.
The porcelain insulator around the center electrode
of the spark plug should be 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.
If the spark plug shows signs of electrode erosion
and excessive carbon or other deposits, it should be
replaced.
Before installing a spark plug, the spark plug gap
should be measured with thickness gauge and, if
necessary, adjusted 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.
CHECKING THE SPARK PLUG
The engine oil level should be checked before each
ride. In addition, the oil must be changed at the inter-
vals specified in the periodic maintenance and lubri-
cation chart.
ENGINE OIL
1. Start the engine, warm it up for several minutes,
and then turn it off.
TO CHECK THE ENGINE OIL LEVEL
GAP
Type
Gap
NGK CR8E
0.7 - 0.8mm