Proper rattle - any thoughts?

[MunkySXR]

Hi,

Video link below. Started a few weeks ago on startup and is really bad when cold. Gets better as bike warms up but wondered if anyone had experienced before.

https://photos.app.goo.gl/u46YPuKVj9GrWQQr6

Thanks

[Wildhaus]

Doesn't sound like a rattle to me, but a blowing exhaust manifold - which would indeed be worse when cold and lessen (or disappear) when warmed through.  Been there.  Got the badge (albeit with a car).

[MunkySXR]

Originally Posted by Wildhaus

Doesn't sound like a rattle to me, but a blowing exhaust manifold - which would indeed be worse when cold and lessen (or disappear) when warmed through.  Been there.  Got the badge (albeit with a car).

Interesting! 
Bike had headers put on so wonder if they've come loose. Will go check!
Thanks

[ClassicTim]

Apart from the puffing, it sounds incredible! Very nice

[Mitch]

Does the rattle increase in speed when you give it some throttle?

[MunkySXR]

Originally Posted by ClassicTim

Apart from the puffing, it sounds incredible! Very nice

Thanks! Black widow headers with standard muffler. Was going to get aftermarket can but I don't feel it needs it.

[MunkySXR]

Originally Posted by Wildhaus

Doesn't sound like a rattle to me, but a blowing exhaust manifold - which would indeed be worse when cold and lessen (or disappear) when warmed through.  Been there.  Got the badge (albeit with a car).

You sir were spot on! Took it apart over the weekend and found a single header nut had backed off. Tightened up and no more noise. Thanks!

[Wildhaus]

Excellent!  I am glad it is sorted and you can now enjoy your great sounding XR!  Thanks for closing the loop - not just for me, but for anyone finding this thread in the future.