i also have a virus 2 had it for 9 months now with only minor problems great buggy and looks good.you may find that the engine will cut out at tdc dont worry this is due to engine being tight , just take out plug heat with hairdryer put a few drops of afterun oil in and restart. i would keep the engine still a little rich gradually lean out both needles. nothing wrong with giving it the full beans for short bursts at this stage.