Suzuki ATV Master!
Join Date: May 2014
Location: Middle of Alaska
If it is a CV type carb, it is an air screw, (before the slide) so backing off leans it out more.
Regular carbs the screw is a fuel screw, back out to add fuel.
Easiest way to tell the difference between a CV and a normal carb is the throttle cable controls a butterfly valve on CV carbs, it controls the slide on regular.
Not sure what years Suzuki used the CV carb on, but my 1990 has one, but the 1989 does not.
2013 Suzuki King Quad 500 AXi w/EPS
1990 Suzuki LT-4WD 250
and lots of snowmachines