My '73 fj40 won't start...all the time, that is. It will always turn over, but sometimes it won't even sputter. I thought at first that it was flooding out, but the window on the carb is only half full (does this mean it's not flooding?), and my spark plugs are less than a year old and are in good shape. If anyone has any other ideas on what else could be wrong, I'd appreciate it, thanks.