That should be no problem at all! If you look carefully under the air box in the center of the 2 carbs you should find a small knob. Stick you hand up in there without touching that engine and turn in counter clockwise. The easiest way to do that is while sitting on the bike and in neutral, take your left hand an slide it up under the carburetor, turn in till it idles around 1300 rpm and that should do it!