Ducati Diavel Owners Manual: Noise and exhaust emission control system information
Source of emissions
The combustion process produces carbon monoxide and hydrocarbons. Control of hydrocarbons is very important because under certain conditions, they react to form photochemical smog when subjected to sunlight.
Carbon monoxide does not react in the same way, but is toxic. Ducati utilizes lean carburetor settings and other systems to reduce carbon monoxide and hydrocarbons.
Exhaust emission control system
The exhaust emission control system is composed of lean carburetor settings, and no adjustments should be made except idle speed adjustments with the throttle stop screw.
The exhaust emission control system is separate from the crankcase emission control system.
Crankcase emission control system
The engine is equipped with a closed crankcase system to prevent discharging crankcase emissions into the atmosphere. Blow-by gas is returned to the combustion chamber through the air cleaner and the throttle body.
Evaporative emission control system california motorcycles are equipped with an evaporative emission control system which consists of a charcoal canister and associated piping. This system prevents the escape of fuel vapors from the throttle body and fuel tank.
Tampering warning
Tampering with noise control system prohibited. Federal law prohibits the following acts or causing thereof: (1) the removal or rendering inoperative by any person, other than for purposes of maintenance, repair, or replacement, of any device or element of design incorporated into any new vehicle for the purpose of noise control prior to its sale or delivery to the ultimate purchaser or while it is in use; or (2) The use of the vehicle after such device or element of design has been removed or rendered inoperative by any person.
Among those acts presumed to constitute Tampering are the acts listed below:
- Removal of, or puncturing the muffler, baffles, header pipes or any other component which conducts exhaust gases.
- Removal or puncturing of any part of the intake system.
- Lack of proper maintenance.
- Replacing any moving part of the vehicle, or parts of the exhaust or intake system, with parts other than those specified by the manufacturer.
This product should be checked for repair or replacement if the motorcycle noise has increased significantly through use.
Otherwise, the owner may become subject to penalties under state and local ordinances.
Problems that may affect motorcycle emissions
If you are aware of any of the following symptoms, have the vehicle inspected and repaired by your local ducati dealer.
Symptoms: hard starting or stalling after starting.
Rough idle.
Misfiring or backfiring during acceleration.
After-burning (backfiring).
Poor performance (driveability) and poor economy.
Reporting of safety defects
If you believe that your vehicle has a defect which could
cause a crash or could cause injury or death, you should
immediately inform the national highway traffic safety
administration (nhtsa) in a ...
Riding safety
The points given below are applicable for every day
motorcycle use and shoud be carefully observed for safe and
effective vehicle operation.
A motorcycle does not provide the impact protection of ...
Other materials:
Symbols - abbreviations - references
To allow quick and easy consultation, this manual uses graphic symbols to
highlight situations in which maximum care is
required, as well as practical advice or information. Pay attention to the
meaning of the symbols since they serve to avoid
repeating technical concepts or safety warnings th ...
Removal of belly fairing
Loosen and remove the screws (5) and (8) that secure the oil cooler (7) to
the rh (1) and lh (2) belly fairings.
Remove the lh belly fairing (2) by loosening the screws (3) with relevant
washers (4) and the screws (12).
Follow the same procedure to remove the rh belly fairi ...
Adjusting the rear shock absorber
The adjuster (1) located on the lower connection holding the shock absorber
to the swingarm adjusts the damping during
the rebound phase (return).
The knob (2), located on the left side of the motorcycle, adjusts the preload of
the shock absorber external spring.
Turn the adjuster (1) clock ...