hi ajbay, you need to remove the pilot jets completely and the air screws completely. the pilot jets need to have a small piece of wire run through them to be assured they are clean, also an aerosol can of carb cleaner would be helpful. be sure you can see through them. also spray carb cleaner through the pilot hole passages til you see carb cleaner coming from the air screw passage way. compressed air also helps. just be sure the pilot jet circuit passage ways are clear from float bowl to intake side of carb bodys.