Has anyone seen the newer Rider 9’s and how they are adjusted for the idle? The carb has no screw and I’m curious if anyone has an idea of how to set the idle on these things?

 

Idle what? Idle mixture screws are often hidden to stop you fiddling with them, so don't. I would have thought there would be an idle speed screw, but if there isn't, you would have to alter throttle cable length to get the correct idle speed, not a good way though, as you can get it revving up when you go round corners.