Sorry for bringing back this old thread, I'm new to the sight and I'm not sure how to start my own, if I can.
Anyway, I've got what I believe is a 1986 Kawasaki Bayou 300. Apparently it had a new top end put on it including a brand new cylinder and head about 6 months before it sat. Well its hard to start no matter what, once you get it started it will idle fine and you can give it full throttle and it will run fine. Well after about a minute or so it will die and I have to wait for it to cool down until I can get it started back up. The bike sat for about 3 years before it was given to me. Before it sat it ran fine, just a rusty gas tank and some bad wiring. The wiring is fixed and I have a make-shift gas tank on it now. I took the carb off and noticed that the choke cable was broken so it can't thread in, I don't think it is a problem, maybe it is, who knows. I took the carb apart and realized I was missing the spring that goes on the end of the air screw. Is this an important part or not? Are any of the problems with the carb affecting the way it runs? I intend on replacing the broken parts after I know for sure it will run correctly. HELP, PLEASE!!!