Serpento COBRA Manual De Usuario página 105

• COBRA
MANUAL DEL USUARIO
Note:
For the first 1,000 km and every 3,000 km, entrust the authorized dealers to check the electrolyte gravity of the battery with a gravity gauge.
The battery operating condition can be judged according to the gravity.
Spark Plug
After the first 1,000 km or every 3,000 km, clear out the carbon deposit attached to the spark plug with a small metal brush or cleaner. Readjust
the spark plug gap with a gap gauge so as to keep it between 0.6 and 0.8 mm. Replace the plug with a new one after every 6,000 km.
While cleaning the carbon deposit, observe the color of the porcelain tip. The color can tell you if the standard spark plug apply to your
motorcycle. In case of being wet or black in color, it is more suitable to use high-pressure hot type of spark plug. The normal working spark plug
usually is light gray or light brown. If the spark plug is white or seem flashing, it shows that the spark plug works under the overheat condition.
In such case, renew the spark plug with a cold type one.
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