Carb trouble

Hello I’m having a problem with my 2003 500 sportsman , it sat for almost a year and I knew that the carb was going to need cleaning and while I had it apart I would replace the needle and all the jets.well it all went back together just fine but when I went to start it ,it idled high and won’t come down! No matter what I did I tryed adjusting the idle with the screw under the carb .im at a loss what to do next

Carb trouble

Hello I’m having a problem with my 2003 500 sportsman , it sat for almost a year and I knew that the carb was going to need cleaning and while I had it apart I would replace the needle and all the jets.well it all went back together just fine but when I went to start it ,it idled high and won’t come down! No matter what I did I tryed adjusting the idle with the screw under the carb .im at a loss what to do next