PIAGGIO Beverly Tourer 300 i.e. Service Station Manual page 76

Electrical system
1. Start-up remote control switch
2. Pick-up connection
3. Flywheel - regulator connection
4. Regulator - system connection
5. Spark plug cap
6. Main wire unit
7. Diagnostics socket
8. Voltage regulator
9. HV coil
10.Rear fuse-box
11.Plug socket for accessories
12.Battery negative
ELE SYS - 76
Beverly Tourer 300 i.e.