My 2006 YZ250F has been slowly leaking oil since I bought it used. I finally took the oil tank out and found the leak. I am confused as to how the threaded piece fits into the oil tank because it seems to just slip into the hole. So my questions are "is the threaded piece supposed to be welded into the oil tank or pressed in?" and "what would you do to fix the crack? take to machine shop? JB Weld? Buy a new oil tank?" This is the lower shifter side support for the oil tank. Thanks in advance I am thinking about JB Welding it in just like this and covering the crack. Your thoughts?