thanks for all info.
It is the dash vibrating, hand on it stops the noise. I took it to the dealer, who has contacted kawasaki (this was 2 weeks ago) and apparently it was supposed to have been fixed (from my model VIN onwards, I have 2007 Candy Lime Green model) after the European models had this drama, and was told they were "trying" to get it fixed under warranty. Still no word, i'll have to go back monday.
Does anyone else have shaky mirrors after about 80km/h. Bearable during the day, can't see **** at night.
So Kawasaki new about this problem.