Well I haven't got any further with repairs (I have spent a week abroad and otherwise being far too busy to sort things!!)
So my plans are in the next week check the crank sensor and coil (I bought a coil but it was delivered smashed by the courier and paypal are being useless and the seller is now ignoring any request for refund!!) but I seem to of lost interest so if anyone can shed some light on other things to check whilst I'm at it! Other wise it will be for spares very soon!
The issue is, when cold it starts first time and runs 100%, after a few minutes and when it starts to get warm it runs very lumpy and if you blip the throttle it seems to miss like it's over fuelling and holding it back, driving it has no power (but doesn't stall). I have had it on vag-com and a snap on reader and both show no faults (or miss fire!).
I don't want to be spending lots of ££ as it was only a play thing and has had enough spent already.