Specifications

Service Training
Section 4.9
Page 15
12.05
DESCRIPTION
The engine is equipped with an integrated electronic ignition system without contact breaker points.
Due to its design, the ignition system is reliable, non-adjustable and has the following advantages:
- No centrifugal advance.
- Permanent stability of the ignition timing curve.
- High secondary voltage.
- No wear of the controller due to a magnetic pickup without mechanical contact.
- Ignition and ignition advance are controlled by an electronic controller which is programmed accordingly.
METHOD OF OPERATION
A fully electronic ignition, as in this case, is a static installation, which provides the ignition spark for the
operation of the engine at the correct time.
The electronic ignition system employed, uses a toothed disc to generate pulses. The system uses
individual ignition coils mounted on each spark plug.
The ignition pulses are conducted to the ignition coils in the firing order and from there to the respective
spark plugs.
The main feature of this ignition system is the electronic controller, which receives all pulses and signals
and, after processing them, performs or initiates the following functions.
The control of the primary circuit of the ignition coils is by means of the ignition electronics. A regulation
of the ignition timing, depending on the engine speed (information of the generator) is possible.
A spark is generated with a constant energy independent of the battery voltage and the speed of the engine.
The sparks reach the spark plug directly without a high tension ignition cable.
DESIGN CHARACTERISTICS OF THE TEETH
All electronic ignition systems require a pickup for sensing the engine speed for the control of the primary
circuit and the ignition timing, in order to continually adjust the ignition timing to the operating state of the
engine.
With the electronic ignition system, the ignition is controlled by means of teeth on a toothed disc, which is
driven by the engine timing gear.