Fuel Injectors - Ducati Monster 696 2009 Manual

section
M 3

Fuel injectors

The injectors (1) deliver the correct quantity of fuel required for optimal engine operation.
The ECU controls injector opening by feeding current to the coil of an electromagnet which creates a magnetic field to attract the
armature, thereby generating fuel spray. If we take the physical characteristics of the fuel to be constant (viscosity, density),
as well as the injector delivery and pressure head (controlled by the fuel pressure regulator), the amount of fuel injected
depends on the duration for which the injector is open. This time is determined by the ECU in accordance with the
engine operating conditions. In this way correct fuel delivery in ensured.
For removal or refitting of the injectors, refer to Sect. L 6, Removal of the fuel injectors.
Notes
To test the operation of the injector, use the DDS tester and follow the instructions given in the paragraph "Guided diagnosis",
(Sect. D 5).
The fuel output must be even and the jet should be fully atomised, without droplets.
Do not leave the engine stopped for a long time with the fuel circuit full. The fuel could clog the injectors and render
them inoperable. Periodically, after lengthy periods without running the engine, we recommend adding TUNAP 231 to the
fuel in the tank to help clean critical sections of the fuel circuit.
Monster 696/696+ - M.Y. 2009 - edition 00
Fuel injection-ignition system
1
A
B
C
D
E
F
G
H
L
M
N
P
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