If you had to turn the idle screw way up to get it to idle and then it idled too fast, you probably have some debris in your idle circuit. It would be a good ideal to clean the whole carb while it's off.
Did you take the jets out and run a small wire or torch tip cleaners through your jets? You also need to run something through the passages in the carb body to make sure they're not stopped up. If you use a small diameter wire for this, make sure you choose a wire that won't break off inside the carb passages. If you have problems getting the passages or jets unclogged, then you will need to completely disassemble the carb and soak it in some carb cleaner. You can buy the carb cleaner in a can to soak the carb in at your local auto parts store. If you go this route, you will need to remove any rubber seals, O-rings, parts, etc., because the carb cleaner will eat them up.
Most 4-wheeler problems are caused by a loose nut connecting the handlebars and the seat!!
You only need two tools in life -- WD-40 and duct tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape.
Last edited by Helmut; 03-31-2010 at 07:56 PM.