Cleaning and replacing the spark plugs (fig. 79)
Spark plugs are an important part of the engine and should
be checked at regular intervals.
Spark plug condition provides a good measure of engine
condition.
Have the spark plugs inspected or replaced at a Ducati
Dealer or Authorized Workshop. Firstly, they will check
E
the colour of the ceramic insulator of the central electrode:
an even brown colour is a sign of good engine condition.
fig. 79
https://www.motorcycle-manual.com/
78