Hello everyone. I have a kayfun with a stripped fill port. I dont know what version or who makes it. It has no markings, hex screw for the airflow control and fill port is a small phillips screw with no o-ring. Anyone have a fix for this? I just ordered one from fasttech and I know Ill have a bit of a wait. Im using my old vivi nova but its just not as good. Do they make screw tap/die sets that small? Some kind of rubber plug? Any ideas welcome!