I have not had any issues that you speak of. But that much vibration could be of a concern. But like the other post indicated, these scooters and their engines can cause some conditions that are normal but newer riders are not used to. A couple of things:
1- If the scooter is new, really try not to go top speed (or over 45-50) until after a couple of hundred miles. An engine/scoot that is not fully broken in, can cause some "weirdness" etc.
2- By all means, call or re-visit the dealer you bought it from and ask about this.
3- Scooters ride differently than motorcycles, the smaller wheels are more "sensitive" to road conditions.
4- I have never had a scooter/motorcycle with a properly balanced set of wheels. Balancing a scooter wheel is difficult unless the shop is really good. Try getting your wheels balanced. (At the least check air pressure, and all nuts & bolts etc)
5- A GREAT product for balancing wheels is Dyno Beads. I have been using them on all my two wheeled rides for years. Here is the web site:
http://www.innovativebalancing.comThey really work and are not hard to install (if you have a valve core remover tool and air compressor). Check out the site for more info.
If your condition is a balance issue, Dyno Beads are worth the look.
My Like 200i rides very smooth as is, but I will be putting in a set of Dyno Beads after my first oil change, since I still haven't hit 300 miles yet...I know, mild winter in Philly area...what is my problem?
Wind and "newness" are things you will get used to. I am sure it is nothing. The Likes are some of the best built rides out there. You can also look into different grips, but again, think the more you ride, the more this will not be an issue.
Be safe and good luck with your scoot.