Last November I sold and shipped a t pot carb and carb linkage to a man in Wallen,Wallen Victoria Au.It arrive in Australia ok but the postal service refused to deliver it to him..He told me that they would not give him a reason and also were going to return it to me,which they did.I have sold and shipped him quite a few parts in the last year and never had this happen.The carb has not had gas in it for years and I also had it wrapped in plastic so no fumes should have been present,the container has never been opened since I shipped it by USPS. Just wondering if anyone else on this site has had a problem like this  Carl