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 devicesDisassembly of rear shock absorber - rocker arm - linkage assembly
Undo the screw (15) and remove the rear shock absorber (11) from the rocker
arm (18).
Undo
Undo the screw (14) and the nut (21) and remove the linkages (10) and (12)
from the rocker arm (18).
The rocker arm movement is obtained by needle roller bearings (9) rotating on
a spacer (1 ...
Starter motor relay
Introduction
When the rider presses the start button, with all the safety conditions
required to enable engine start met, the engine
control unit enables the relay that activates the starter motor.
Component assembling position
Connection on starter motor relay.
Connection wiring diagram
...
Reassembling the frame and the lateral footrests
Apply the recommended grease to the thread of the pins (9) and of the nuts
(8).
Place the frame (1) and the brackets (2) and (3) on the engine block. Start the
pins (9) by holding the nuts (8) and insert
without tightening the screws (6) into the adjusters (4).
Position and fix the rear s ...