Engine rattle above 3500 rpm

Mine doednf sound nearly as bad when riding but with my phone bring slightly out of the wind this is how it came out. Honestly it sounds way worse on the video. I just recorded with my phone and had to shift with out the cluch.

74ullc wrote: I just gave my down pipes a knock with my knuckle. Sure enough the right side pipes (the side I hear the rattle from) make a buzzing sound when I hit them. The left side pipes sound solid, like thumping a ripe watermelon. I checked the nuts and they are all tight to the head.

My pipes are stock LTD pipes, I have read they were NOT double walled? But the pipes show no color so that would imply double walled right?

Hopefully this is all the problem is, If so I can live with it. But how can I be sure? Any ideas? I'm not going to start drilling holes and putting pop rivets in my factory exhaust.

The only solution with mine was to get another exhaust. The problem pipe had to be the one factory welded to the muffler. The header has proven to be the best choice in my situation.

That definitely sounds like either a big exhaust leak or a broken exhaust pipe.

i tapped on the exhaust at the headers and the left two sound like a solid thud and the right two give a ping but it sound more like the left two are thicker pipe tank anything.
are the stock kz550 c pipes even double walled?
thank you!
Is the fact that you only hear it under load a sign of something more mechanical or exhaust?

Is this too much chain stretch for correct timing? This is the motor at TDC on fire stroke and the timing lines on the cams lined up