I did hear about someone having a vibration problem and it seemed to cure itself when they added a passenger and loaded up the drivetrain. The comment was that the clutch or CVT belt seem to seat itself...problem gone.
That was me …
But it has come back but not as bad, it is 90% better then before @ 4-5,000rpm range this where it was the worst it is all but gone.
But I find below this point it is still no as good as I would expect, the clutch on mine is fully engaged @ 4,500rpm and below this I guess it's ½ on which could be the vibration.
It is a pain in crawling traffic, my clutch start to engage @ 2-2,500rpm and fully locks @ 4,500rpm and crawling through the traffic it’s @ 3-4,000rpm
There is a post @ Yahoo site from naval officer in Japan that had the same vibration and he replaced has belt with aftermarket Kevlar belt and found it fixed vibration (his is a 250EFI like mine)
Greg …
Here is the link to Yahoo Post ...
http://autos.groups.yahoo.com/group/Suz ... ssage/8731