93 KX 250 carb settings
The float level should be set at 16 mm plus or minus 1mm, the air screw should be screwed in all the way and backed out 1.5 turns. The stock main jet is a #162 pn 92063-1369 and the stock pilot is a #50 pn 92064-1144. These are standard stock settings and you can adjust them depending on elevation, riding conditions and experience.