Yamaha YZFR1W 2007 Service Manual page 335

LIGHTING SYSTEM
1. Main switch
4. Main fuse
8. Battery
19.ECU (engine control unit)
51.High beam indicator light
54.Meter light
62.Dimmer switch
71.Headlight
72.Auxiliary light
74.License plate light
76.Tail/brake light
77.Headlight relay (on/off)
78.Headlight relay (dimmer)
81.Headlight fuse
88.Ground
89.Battery negative lead
8-16