Repair Manual

IGNITION AND INJECTION
17
17 - 10
IMPORTANT:
The connector disconnection and connection is to be done only with contact OFF for
the following checking and adjustment.
The basic adjustment of the valve (d raw ing 5) is the corr ela tio n betw een the potentiometer
position and the positioning engine of the valve. The adjustment is checked as follows:
-engine on contact;
- idle motion regulator supplied according to the diagram by a continuous source
having U = 5 – 6,5 V, necessary to lead it at the end of its way;
-the voltage U v and the partial voltage U 1 are measures on the potentiometer;
- the point with (U v, U 1) coordinates is marked on the diagram (drawing 6); in
case of a correct setting the point will appear on the shaded area of the diagram; if not
- the setting screw “3” should be rotated both ways.
Fig. 5
Fig. 7
Fig. 6
DESCRIPTION OF THE SYSTEM
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