Rattly exhaust
 

My 999BP has started making a loud rattling noise from the exhaust (standard pipes) every time I blip the throttle. At idle it's quiet, but when you blip it it makes quite a loud rattle that sounds frankly embarassing.

Anyone know what this could be? Should I be worried? I'm about to change the pipe soon to some loud ones anyway, but I'm worried it is something more than just the exhaust. I've done 13k miles, and its a 2002 model, last serviced 9 months ago (a big one). Maybe the cat is coming apart?!

Any help greatly appreciated :(

sounds like the baffle has come loose(posibly)

Thanks for that. You don't think I should be panicking then, it isn't likely to be a valve banging about?!

I presume that when I fit my new pipes this week that if the noise has gone then the problem was definitely inside the std. exhaust and nothing sinister?

Had a similar noise on my 748. Turned out to be a spring on the exhaust that started to vibrate against the exhaust at certain rev's. Tweaked the spring mounting clip so that the spring was well clear of the exhaust.

Worth while checking out.

Yep,heard of another one that had strange rattling noises from the exhaust,..turned out to be the standard no.plate holder had sheared and was rattling against the can.
Oh yeah,make sure the alloy heat sheild is secure.;)