Mamuci

Thanks for the advice it was the Bosch spark plug loose that was making the sound, more the fact the plug was defective than loose top part wiggling around only been in for a couple of months. Your diagnosis was bang on. Its a good sound clip to help people with same problem :-)

Have you any Ideas of this sound... greatly appreciated 

Hi  can you have a listen to attached and see what you think.... thank you very much