The right fan is powered directly off the battery and is manually turned on and off with a handlebar power switch. The left fan is wired to the factory harness and turns on and off automatically...

Case Saver. Black. Fits standard sprocket or 1 tooth down. Yamaha YFZ450 EFI model.

Case Saver. Black. Fits standard sprocket or +1 tooth up. Yamaha YFZ450 EFI model.