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 devicesChanging the brake fluid
Warning
Brake fluid is corrosive and will damage paintwork. Avoid contact
with eyes and skin. In the case of accidental contact,
wash the affected area thoroughly with plenty of running water.
Changing the fluid in the front brake circuit
Remove the cover (1) with the membrane from the front b ...
Storing the bike away
If the motorcycle is to be left unridden over long periods, it is
advisable to carry out the following operations before storing
it away:
clean the motorcycle;
empty the fuel tank;
pour a few drops of engine oil into the cylinders through the
spark plug bores, then turn the engine over by hand ...
Reassembly of the oil pump
Check that the circlip (3) and tongue (13) are present on the pump.
Fit the pump drive gear (12) on to the oil pump and secure it by installing the
circlip (6) in its groove.
Insert the by-pass valve pump (17), the spring (16) and screw the plug (14).
Tighten the plug (14) to a torque of ...