yes chain is fine

could it just be the exhaust its self , i have a tsr half system and and when cold it does rattle, its just the pipes them selves resonating and gets less as they heat up,
however during my strip down for my rebuild i noticed the rear manafold was'nt really that tight when i removed it so im guessing that could be the cause of the tinny rattle on my bike , wont know till its all back together and i fire it up as the gaskets for the manafold have been replaced and its a lot tighter than it was when it came off, but im guessing its just the nature of the pipes to do that and its something ive learnt to live with

it does sound like its coming from the exhaust, but it just started happening suddenly about 1 month ago

kids been chucking stones down the end can ??

Hi, strangley mine NC30 started doing this like it was pinking at low RPM i tried richening it up a bit made know differance, checked the valve clearences made no differance, changed oil to full synthetic and it went away! I still recon it was pinking but why i dont know, gonna strip the carbs totally over the weekend hopefully just to make sure and need to change jetting anyway.
I running castrol fully synth BIKE oil, think it called power one or something, and before everybody says dont use it , my clutch does slip at all!
Hope it helps.
Cheers
Ian

Deviant400 wrote:kids been chucking stones down the end can ??

....

Hirons just take it to a garage lol

i have mate they cant seem to figure it out

Fair enough.

If its not getting any worse,it can't be to serious. When u next out?

this proplem is getting alot worse now the rattle is extremly bad when cold but i still can not figure out and no where else seems to be able to either the proplem any more ideas

Starter clutch? That'd rattle at idle too, though.

You need to identify where it's coming from. Could be anything from a dodgy bearing on the clutch to a rattley fairing that only makes itself known at certain revs.