Suzuki GSF1200S K4 Bandit Headlight Repair. If you look anywhere on the internet regarding the headlights on the 2nd Gen Bandit S models 1200 and 600 you will find numerous instances of the problem I have with mine. Namely poor light output, dust inside the lens and buzzing. Admittedly 90% of the buzzing will be coming from the windscreen and other loose fitting in the front fairing. I noticed an big increase in buzzing around 3000 rpm lately so had a good look round the area and discovered