Just checked my flyer, the advance cable is fitted with a standard nipple, the magneto cover is attached by a double headed bolt, one end secures the rear mag platform, the other the cover:
[attachment=1:1t8azhxt]IMG_2906.JPG.jpg[/attachment:1t8azhxt]
And
[attachment=0:1t8azhxt]IMG_0120.jpg[/attachment:1t8azhxt]
Mike.