help needed for poor running engine

[Dickylew]

Is there anyone near the chatham area that can help me with my sons hobao hyper 7 tq.

I got this at xmas and have never been able to get the engine running smoothly i have taken advice on these threads but nothing i try seems to work.

I can get it started but once running the engine sounds very lumpy and the revs are hunting all time.

I tried going back to factory settings but to no avail.
The engine idles for a while then revs high, after a short while just cuts out.
Any attemp to touch the throttle ever makes it rev wildly or cuts out.

can anyone assist with the tuning of this.

Kind Regards