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. Place the vehicle on the main stand. A slight tilt to
the side can result in a false reading.
TO CHECK THE ENGINE OIL LEVEL
ITEM
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Rear brake lever
pivot shaft
• Lubricate with silicone grease.
Side stand
Main stand
• Check operation.
• Lubricate.
Front fork
• Check operation and oil leakage.
Shock absorber
• Check operation and shock absorbers for oil leakage.
Engine oil
• Change.
• Check oil level and vehicle for oil leakage.
Engine oil strainer
• Clean.
Front and rear brake
switches
• Check operation.
Moving parts and
cables
• Lubricate.
Throttle grip
Housing and cable
• Check operation and free play.
• Adjust the throttle cable free play if necessary.
Lights, signals
and switches
• Check operation.
• Adjust headlight beam.
CHECKS
ODOMETER READING
1000Km 4000Km 7000Km 10000Km 13000Km 16000Km
GAP
Type
Gap
NGK DPR7EA
or
TORCH D7RTC
0.6 - 0.7mm
New 3 months 6 months 9 months
15 months
1 year
