REBUILT OEM OEM Walbro carburetor WT-500.  Item is rebuilt OEM and is cleaned, rebuilt, and set to factory specs. The man who rebuilds these for me, has rebuilt thousands of 2-cycle carburetors.  If you have any problems, please contact me prior to opening a return.  Maybe we can help.  Please include a short description of what is going on.  Please verify that your carburetor is the problem before ordering.