I've ridden different year 800 Intruder and never notice any such symptom as you described.
As mentioned before, you may have a bearing problem in either the triple tree or the front axel. Have it looked at ASAP.
I'm no expert but, it sounds like it may be a hazard.
__________________ Sometimes you need to ask yourself, "WWGD?"...Just be awesome, that's all! GUT-CUT 2007: 177 LBS.  160 LBS. |