those carbs can be a real pain sometimes. you need to take that carb apart and soak it. there is a circuit between the slow jet and the idle mixture screw. if this is clogged, the carb will not run right no matter what you do. the easy way to check this is to take the fuel bowl off, take out your slow jet and idle mixture screw. spray carb cleaner, brake cleaner, whatever into your slow jet hole. you should see it coming out of your idle mixture screw openings. i dont know if everyone has access to the degreaser "purple power", but this is the best stuff made for soaking and cleaning a carb. i have tried them all. carb cleaner works well if you don't have any buildup, but if your bike has ever set for a prolonged time without being rode, then you def. need to soak. if you use purple power, you must keep a check on your carb. this stuff works wonders but sometimes it works too well. you cannot just throw it in there and leave it for hours or days. the longest i have ever had to leave one is a hour, most the time only 30 minutes. it could damage it if left too long.
