A Yamaha OEM solution, for a nagging problem. Albeit, for another model.
Worth a try. Under $10.
The flap (http://www.boats.net/parts/detail/yamaha/Y-5JW-21621-10-00.html)
Exploded view - see item #22 (http://www.boats.net/parts/search/Yamaha/Motorcycle/2004/FJR1300%20-%20FJR1300S/FENDER/parts.html)
Or showcase your piece of truck inner tube, with rusty sheet metal screws. :rofl2: