Just picked up my 05 CBR1000RR with only 300 miles on the clock.
The machine is truely awsome and I am delighted with it.
However, at very low RPMs, if I labour the engine, I can hear a rattle in it, or a vibration, until it picks up to 3000-4000 RPMs, then it disappears..
Anyone know what it is, or is it normal?
Any opinions would be appreciated.

 

It's engine ping. They all appear to do it. Type in spark knock under seach and you will find more on this topic.

Adam..

 

Mine does it too. However, I just got my first service done and it seems to rattle a little less than before. I don't know if they tightened a cam chain or something but it seems to be better.

 

They all do it. My buddy said that his old GSX-R 750 was worse than his 1KR!

 

just never heard it before on other bikes.
I also have a 02 F4i and it doesnt make that noise.

 

hi corcullen,
i had a 2003 600rr that made tons of noise at low end even ideling its just the way the cam chains are laid out just try not to lug it at low r.p.m. in the higher gears . doesnt hurt it just sounds funny i guess that is how all race engines sound