Thanks Roscoe, now we are getting somewhere. The CYLINDER Head is where The studs (that the flange bolts to) are located. I have no problem with the Muffler,Pipe or flange, there is no stress whatever, it fits up very well. So if my one 5/16-18 bolt does not work I will replace the Cylinder Head. I don't understand why with only 3500 miles this happened. I bought the scooter used and it was like this when I bought it. One stud was missing and the nut from the other side missing. It was making vibration noise and too much exhaust noise.
Thanks Everyone for all the help.
James Hood
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