I balanced my throttle bodies earlier and all went well apert from the fact that now i cannot lower the idle speed to what it needs to be :'(

It will go so far then it wont go down any further no matter how much the screw is turned, or even until the screw comes out alltogether

Any advice or help muchly appreciated as I dont really want to use the bike until i know its ok and i haven't f*****ed sommat up altogether

Thanks in advance
Simon