--- In southwestscooterclub@yahoogroups.com, "unknown" <xv535man@...>
wrote:
>
> Interesting, this is my second exhaust, and fatigue from vibration
> seems to be the cause. - I've got about 7000km on mine.
> Its definitely vibrating more than I remember it doing, so I will have
> to investigate further. Anyway, i'll have a look this weekend. Cant
> imagine its mains, as I managed about 250 miles on it before the
> exhaust broke, and I would hope that the mains would have let go over
> this sort of mileage cruising at 55mph.
>
> The vibes only really start above about 40MPH.
>


it may be the rubber gromets that the bracket bolts go through that
hole it on the frame gone