Yamaha XV19SW Service Manual page 352

ELECTRIC STARTING SYSTEM
3. Main switch
4. Main fuse
6. Battery
8. Starter relay
9. Starter motor
10.Diode 1
11.Relay unit
12.Starting circuit cut-off relay
14.Neutral switch
15.Diode 2
16.Sidestand switch
27.ECU (electronic control unit)
54.Clutch switch
68.Engine stop switch
69.Start switch
77.Ignition fuse
81.ECU fuse
7-8