hey, i wanna say thanks to all that helped me fix this problem, i did some stuff today and i just got it working pretty darn good, i think that the slides were in backwards, there in right now, i put 2 new plugs in, i added a height on the carb needle and its running great now. (fhewww im glad it wasen't the crank seal. one more question though, what is the screw that the carb slide passes when you drop the slide into the carb? i cant seem to find out what that is for, it also has a nut on the screw that you can tighten. thanka agian.