where is the idle adjust screw on a 1998 yz 250 yamaha?

[Rob]

I cant seem to locate where to adjust the idle on my yz 250 1998

 

[pastranarocks199]

should be on the side of the carb but im not 100% sure

 

[guardrailjim]

The choke knob is also used as the idle adjustment screw - turn it.