Yesterday I have noticed that my '06 xt660x radiator fan motor is not working and the rotor of the el. motor is hardly rotating by help of the hand. After dismantling it, found that water somehow (through connection cable most likely) penetrate inside the fan motor causing corrosion of internal housing and both ball bearings to seize. That won't be a problem to repair, but with jammed rotor and applied voltage to rotor collector, current passing through carbon brushes was too high thus producing excessive heat which caused carbon brushes plastic guide/holder to melt down and deformed itself. 7.5A fan fuse did not blow-out as current did not reach the value of fuse melting-down, I presume. So new radiator fan I'm looking to buy. I have found some alternative ones but all are not of suitable degree of IP protection to manage outdoor operation.
Will try at local yamaha dealer ......


bye