XT660R noise
 

Hi guys,

Just in need of some advice about what this noise could be, taking the bike to the shop in a couple of weeks but keen to know what it could be!

Sounds like a hollow whistling sound, only happens once the bike warms up. Otherwise no real pattern to it making noise, constant revs it seems to happen.

See the video and let me know

Thanks

https://youtu.be/l7WQ7488Twk

https://youtu.be/8EMewc6p88M