Serpento COBRA Manual De Usuario página 106

CAUTION
The standard spark plug available to this type of motorcycle is carefully chosen to suit most of the working scope. If the color of spark plug is
different from the standard one, consult with dealers before changing other types of spark plugs with different heat-resisting range. Selection
of improper spark plug will lead to serious damage to the engine. Choosing improper spark plugs can make operation very difficult. So contact
with your dealer before using other brands of spark plugs.
Engine oil
Engine's durability depends on the quality oil used and regular renewal. The two most important maintenance tasks are the daily oil level
checking and the regular oil change.
Oil level checking
40