Ducati Monster 696 2009, Manual

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section
M 1
3 Monster 696/696+ - M.Y. 2009 - edition 00
Fuel injection-ignition system
1 - Description of the system
General information on the fuel injection-ignition system
The integrated electronic control system, with ignition and injection both controlled by the same control unit, ensures optimal
engine performance and output, thus reducing fuel consumption and harmful exhaust emissions. This system ensures an
accurately metered air-fuel ratio and optimal management of ignition advance.
The system consists of three different circuits:
Fuel circuit
Air intake circuit
Electrical circuit (with control unit, sensors and actuators).
Importance of the air-fuel mixture and the ignition advance.
Correct management of the air-fuel ratio and the ignition advance are fundamental requirements for optimal engine operation.
The air-fuel mixture is given by the ratio, in weight, of air to fuel taken in by the engine: the ideal or stoichiometric ratio is that
which determines complete combustion. Excessive or insufficient air give rise to, respectively, a lean (or weak) mixture or a rich
mixture, which affect power and consumption, as well as emissions of exhaust gases.
Electronic control of ignition timing advance makes it possible to optimise the performance of the engine, maximum power
output, fuel consumption and the concentration of exhaust pollutants.
Electronic ignition timing control combined with fuel supply control allows for optimal engine operation in all conditions of use
(low temperature start, warm-up stage, transitory acceleration/deceleration stages, engine under partial load, full load, idle).
KW
g/KV/h
g/KW/h
KW
rich mixture lean mixture
Ideal ratio
(specific fuel consumption)
(power)