Specifications

Service Training
Section 4.9
Page 16
12.05
TRANSMISSION OF THE PULSES
The purpose of the advance angle sensor (generator)
is to generate a pulse whenever it passes a tooth.
The electronic controller receives a unique pulse when-
ever a specially formed tooth passes the generator.
This allows the top dead centre point (TDC) to be
determined accurately.
ADVANCE ANGLE SENSOR
This sensor is a magnetic pickup mounted adjacent to the teeth of the toothed disc. This magnetic pickup
consists of a permanent magnet with an inductive coil in which a voltage is induced when it passes the
teeth.
These voltages are transmitted to the electronic controller as information on engine speed and position of
the crankshaft.
NOTE: The position of the generator in relation to the toothed disc can not be changed.
IGNITION COIL
The ignition coil is largely identical with coils of conventional ignition systems in construction and in
operation.
A single coil, which is plugged on the plug
without a high tension lead and screwed to an angle bracket,
is used for each spark plug.
ELECTRONIC CONTROLLER
The electronic controller is comparable to a computer. The pulses coming from the generator allow the
electronic controller to determine the speed of the engine exactly. The controller compares the current
speed with the firing point programmed into the ignition characteristic map and triggers the ignition spark
via the appropriate ignition coil with high precision.