Thanks 5th Bike, took it to another shop, I have to replace the Diaphragm and the ring, and to do so they have to remove the carb and they also told me they would make a fix for that nipple. To me is kind of weird that that part itself is not sold, perhaps is attached to the carburetor. I need to keep reading more and study more to be able to do this stuff by myself. The Bike runs great though... Thanks for the help, and the idea of the plastic hose, pen, straw, is pretty good... but since I am going to pay this one time.. let's see how they fix it... will keep u posted... waiting for the parts to arrive...