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:

Checking and topping up coolant level
Check coolant level in the expansion tank on the right side of the vehicle. Steer the handlebar completely to the left and check that the level is between the min and max marks on the side of the expansion reservoir. Top up if the level is below the min mark. Unscrew the filler plug (1) ...

The immobilizer system
For additional antitheft protection, the motorcycle is equipped with an immobilizer, an electronic system that locks the engine automatically whenever the ignition switch is turned off. The grip of each ignition key contains an electronic device that modulates the output signal from a special ...

Flywheel - alternator
Screw Alternator stator Plug Sealing ring O-ring Cover Screw Aluminium gasket Screw Bracket Locating bush Screw generator cover Flange Flanged nut Plane washer Flywheel Washer Inner ring Needle roller bearing Electric starter driven gear Starter clutc ...

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