Identify This Noise?

[deerman2701]

After a trail session this noise appeared? It seemed to come from the stator area? Any ideas? It sounds like something sizzling or boiling?


https://www.youtube.com/watch?v=kMb4_6F6Yik

 

[deerman2701]

Also, from that same area when revv'd it makes a whining noise as well?