Ok I have an 85 200X, which is all stock. I have rebuilt the carb and adjusted the pilot screm according to the Clymer manual. I have checked for air leaks around the intake boot and replaced the gasket between the cylinder and the carb. She'll start right up when the choke is in the center position. After a few minutes of warm up, off I go. Then when I turn the choke off, it refuses to idle. When I set the idle screw up, it'll idle at very high RPMs and then slowly taper down till it dies.
What is up with this carb? Should I raise the needle jet on the throttle cable, bore out my main jet, or what. Surely someone else has this same problem. Any suggestions?