I have a '02 FXDWG with 43K miles. I recently developed a loud whining noise that appears to come from the stator area but if you move to the right side it sounds like it comes from the cam chest. I rode about 5 miles after I noticed it. The performance hasn't been effected. I've had a stator go bad but it never made a sound. I've been reading a lot of forum trying to pin point an area to start looking for the problem. Could it be a cam bearing, oil pump, stator.