Ducati Diavel Owners Manual: Cleaning and replacing the spark plugs
Spark plugs are essential to smooth engine running and should be checked at regular intervals.
The condition of the spark plugs provides a good indication of how well the engine is running.
Have the spark plugs inspected or replaced at a ducati dealer or authorised service centre; they will check the colour of the ceramic insulator of the central electrode (1): an even brown colour is a sign that the engine is in good running order.
Note
Inspect the centre electrode for wear and check spark plug gap, which should be: 0.8×0.1 Mm.
Important
A gap outside the specified limits will adversely affect engine performance and may lead to difficult starting or erratic idling.
Checking engine oil level
Check the engine oil level through the sight glass (1) on the
clutch cover. When checking oil level, the motorcycle should
be perfectly upright and the engine cold. The oil level should
be between ...
General cleaning
To preserve the finish of metal parts and paintwork, wash
and clean your motorcycle at regular intervals, anyway
according to the road conditions you ride in. Use specific
products, where possible ...
Other materials:
The battery charging circuit and power distribution
On the diavel, the +15v (key on power) voltage does not come from a
conventional ignition key, but from pin 30 of the
hands free relay. This relay is switched to closed state by the hands free unit
when the latter enables power on for the
ignition and engine. The hands free relay receives +30v ...
Tips on how to select the sensitivity level
Warning
The 8 level settings of the dtc were calibrated using tyres of the
same make, model and size as those originally fitted to
the motorcycle.
The use of tyres of different size to the original tyres may alter the operating
characteristics of the system.
In the case of minor differen ...
Removing the water radiators
Loosen the screws (p) that retain the supports (s) of the front splashguard
to the air ducts (24) and (26).
Loosen the screws (30), to separate the two internal air ducts (24) and (26).
Disconnect the wiring connectors of the main wiring loom (c) from both fans.
Disconne ...