THE_CRUCK
+1y
Single stage is a pain to work with. I use to paint motor homes. A fish eye eliminator will help. It could be caused from something as simple as a little water in your air. Reducer I don't see causing it unless you mixed it way too thin but even then it would run more than anything. I would check your water/oil seperator or air drier start there. Like said above also if any contaminate is on the vehicle this will also cause it, I wiped down the motor homes with denatured alcohol before spraying. Hope it helps.