That damage is not actually from the fan blade itself striking the radiator, but rather from the housing itself rubbing/beating/wearing itself against the radiator from vibration and bumps.
I just gave mine a quick feel, and it is not secured tightly enough against the radiator such that it would eliminate movement (it wiggles easily), and that's going to lead to the same problem you have if I don't do something about it. So thanks for the heads up.
There should be some sort of rubber gasket that sandwiches between the housing and radiator that prevents damage and movement and increases fan efficiency. If not, then the whole fan housing should be spaced away enough so that when it jiggles and wiggles and vibrates, it doesn't touch the radiator core.
Warranty should cover it so long as there's no indication of crash to the assembly/radiator/bike. Good luck.
BajaDave screwed with this post 11-09-2009 at 12:43 PM