I have 2003 road king with 1550 cc. When it is warm, it idles at 2000rpms. I have tried resetting ignition switch, but still does the same. Any help?

 

Did you just put the 1550 together or have you had it a while? Check your connections to your throttle position sensor. For that matter, check all your connections on all your sensors on your throttle body. Check the wires around the throttle body too.