Replacing The Spark Plugs - Ducati SCRAMBLER 800 Workshop Manual

Replacing the spark plugs

Check the colour of the ceramic insulation around the central electrode: an even, light brown colour
indicates the engine is in good condition and running at the right temperature.
Check central electrode for wear.
Warning
Do not use spark plugs with inadequate heat rating or incorrect thread length.
The spark plug must be securely installed.
If a spark plug is loose, it can overheat and damage the engine.
Spark plug type
Make: NGK
Type: DCPR8E
Remove spark plug cap (1), loosen spark plug (2) and remove it.
Change it with a new one having the suitable heat rating.
Repeat this operation on the other head.