The bad thing is, i live in small country we don't such things as test rides.
The vibration was there when i got it, zero miles on it.
Even speedo indicator vibrates.
Engine does not have any distinguishable noises.
Two other things i notice:
1) Since 2k km gear deceleration has twice lower than it was at the beginning.
(May be related to brake in, initially engine has more friction)
2) Acceleration is liner to ca 5000 rpm, after that decreases.
Most noticeable on 2th gear acceleration.
But if you say cruising(not accelerating) 70 - 80 mph 5th 6th gear should be smooth, no vibration on foot pegs and speedo indicator doesn't vibrate, that all i need to know.