Spark plug
After the first 1000 km and every 3000 km thereafter, clean off any carbon
deposit from spark plug by using a small steel wire brush or a spark plug cleaner.
Readjust the spark plug gap with a thickness feeler to keep it between 0.6 - 0.8
mm. Replace spark plug every 6000 km.
When cleaning off carbon deposit, observe the color of the ceramic tip of
spark plug. The color can tell you if standard spark plug suit your usage. If a
standard spark plug shows wet or very dark, it may be better to use a spark plug
with lower caloric value. A normal working spark plug shall be light gray or
cotton yellow. If a spark plug is very white or even glowing, it means the spark
plug was working in overheated conditions. Replace it with a spark plug of
higher caloric value.
Standard spark plug for the motorcycle is carefully selected and suitable
for most operations. If the color of spark plug is found different from
standard spark plug, it is advisable to contact your distributor before
replacing with spark plug in a different heat resisting range. An improper
spark plug may cause serious damage to the engine. A spark plug of other
brand may result in operational difficulties. Therefore, consult with your
distributor before selecting other brand spark plug.
Precaution
Spark plug shall not be over tightened to prevent the threads of cylinder
head from being damaged. When spark plug is removed, prevent any
impurities from getting into the engine through spark plug hole.
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