just had new clutch fitted today but now if i accelarate to 3000rpm in second and then let off the throttle i can hear an on and off throbbing/vibrating noise.As any body got any ideas as to what the problem is? thanks andy p

 

You need to be a little more explanitory about the sound..
Mettalic tinny grinding??
Rob

 

sounds like a deep grinding vibration under my left foot.

 

It sounds like it might be your exhaust touching perhaps??
What system do you have??
Rob

 

i have magnex downpipe with custom centre.cheers andy p.