The negative cable, which is normally connected to the negative pole of the battery, is fastened to the crankcase. From here, the cable branches off and splits up within the electrical system to carry the ground connection to the different elements in the system.

The image shows the ground connection on left side of the engine crankcase.
The battery charging circuit and power distribution
Electrical power for lighting and signalling devicesFrame inspection
Frame
Rh subframe
Lh subframe
Grub screw
Nut
Special screw
Rubber pad
Nut
Special screw
Screw
Left-hand bracket
Hose clip
Hose clip
Right-hand bracket
Special screw
Cover
Handgrab
Slider
Reflector (rear)
Splashguard
Pin
Clip nut
Tool tray
Screw
...
Ignition coils
Introduction
The engine control system of the diavel includes two ignition coils: one for
the horizontal cylinder and one for the vertical
cylinder. These coils are installed directly in the spark plug wells. A diode is
installed on the secondary winding inside the
coil, which prevents the un ...
Engine temperature sensor
Introduction
The engine control system on the diavel uses a sensor that measures the
temperature of the coolant (engine
temperature). This sensor has a resistance of ntc type (negative temperature
coefficient), that reduces its own value
when the temperature increases. The engine temperature ...