Ducati Diavel
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Ducati Diavel Service Manual: Spark plugs replacement

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.

Inspect the centre electrode for wear and check spark plug gap, which should be: 0.8+/-0.1 Mm.

Spark plugs replacement


Important

Check the gap between the central and side electrodes. Replace the spark plug if taken value is different from the specified one or the spark plug shows clear signs of carbon settling.

Important

Do not use spark plugs with inadequate thermal 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: mar9a-j

Spark plugs replacementSpark plugs replacement


Remove the coil-spark plugs wires (1), loosening the screws (2) of both spark plugs.

Using the appropriate tool 88713.2877 To replace the spark plugs.

Spark plugs replacement


Spark plugs replacement


Place the coil-spark plugs wires (1) in the relevant seats and tighten the screws (2) to a torque of 10 nm (min. 9 Nm - max. 11 Nm) (sect. 3 - 3, Engine torque settings).

Spark plugs replacement


Spark plugs replacement


Spark plugs replacement


Checking valve clearances
To check the valves clearance, it is necessary to have access to the cylinder head covers and then remove the components listed below. Unscrew the two fixing screws (1) of the cover (2) accord ...

Changing and cleaning the air filters
The air filter must be replaced at the intervals described in the "scheduled maintenance chart" (sect. 4 - 2). Work on the vehicle right side, loosen screws (1) that secure the intake duct (2 ...

Other materials:

Overhaul of the crankcase halves
Carefully examine the engine crankcase halves. Check that the surfaces of the crankcase halves are perfectly flat using a reference surface. Check that the bearings (1) and (18), and the bushings (2) and (17) are in optimum conditions. Note that the main bearings must always be changed in p ...

Removal of the clutch
Note For clarity, the figures show the engine removed from the frame. Undo the fixing screws (1) and remove the ring (2) and the springs (3) from the pressure plate (4). Slide the pressure plate (4) paying attention to the circlips (6). Remove the clutch control pin (14) and the ...

Dashboard diagnosis
This function identifies any abnormal vehicle behaviours. The dashboard activates any abnormal vehicle behaviours in real time (errors). At key-on (at the end of the check) one or more "errors" are displayed in red (only if they are active). When an "error" is triggered, the indication (r ...

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