William Robinson: That needle FBD shows is from the Towerhobbies product picture.
I have backed the lsn out 3 turns from bottom (carb fully closed) and will try the engine again tomorrow. If I can't get it to run I have to take the engine off the plane and investigate further.

Here's the deal:
Brand new engine, fired right up with factory settings and ran really good for two tanks of fuel for break-in.
When I refuelled the third time, mounted the wings and got ready to maiden the plane it was totally dead. Checked glow, plug, fuel etc... Seemed ok, but no go.
Then I decided to turn the lsn in to reset the stated "3 turns out" factory setting and I lost the lsn in the carb because I forgot to close the trottle barrel before turning the needle in.
As I said, I now have the needle out three turns and will give it another go tomorrow...