helloo, this mornin i went out to my bike baring in mind it was frezing last night and my bike was outside, toped it up with 2 stroke started it and left it to run for 5 minutes then turned it off, left it hour or so then tried starting it and it wont go, it starts for a second then dies, sometimes long enough to give it throttle but then it dies!spark plugs fine and the carb took it of and cleaned it and still nothin! left it at home for a while came home and all the petrol had leaked out the overfolw pipe, could anyone help me pleasee!!!!!!