Thanks for the info,will check the plug for oil tomorrow,when first checked with Nanocom it showed a fault "02-08 Ambient pressure circuit" what does that refer too, I cleared that fault and its not come back again, but still has intermittent loss of power particularly when cold,thought it might be the throttle pot but that's dry,perseverance!!
Thanks again for the info\advice.
Cheers
Geoff