Help

Hey folks….I have a 1992 Honda 300 fourtrax. Its been a real trooper. Tough as nails. Lately, I have a real hard time starting it. It seems to be kicking back when I try to start it. It always use to start with a kick or 2. And now if I do get it started and run it for awhile the turn it off, almost impossible to restart it again. Any thoughts?