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 devicesDescription of the clutch assembly
The clutch is disengaged by a drive unit consisting of a thrust piston (c)
accommodated inside a small cap mounted to
the generator cover. This piston (c) pushes a pushrod (b), which runs through
gearbox primary shaft and operates the Pressure plate (4)
located on top of the clutch plate pack ...
Removing the water radiators
Loosen the screws (p) that retain the supports (s) of the front splashguard
to the air ducts (24) and (26).
Loosen the screws (30), to separate the two internal air ducts (24) and (26).
Disconnect the wiring connectors of the main wiring loom (c) from both fans.
Disconne ...
External components
Oil breather valve
O-ring
Sealing washer
Gear position sensor
Cylinder barrel/head stud
Nipple
By-pass spring
Plug
Plug
Aluminium gasket
Nut
Lock washer
Timing gear pair
Key
Key
O-ring
Screw
Locating dowel
Starter idler gear
Washer
Gear shaft
O-ring
...