Also I have found especially with ones sitting for a few years (IE: the ones I got from melbourne) The carby will not suck fuel properly, tipping a small amount of fuel down the carby and smothering the airfilter hole (With the screw that holds the air filter in is a must) with an old shirt folded over a few times and trying to start it, as it begins to stall, uncover the carby a little, it when uncovered it goes to die smother it again and keep going, this seems to eventually get it pumping fuel.
