8hp Yamaha 2 stroke excessive vibration or normal?

[gwozhog]

This is an 06 mother with maybe one hour of use total. It was only used once then put away for nine years. I cranked it up and she shakes pretty bad. I have never owned a two stroke so I don't know what is normal. If I gun it and return to neutral quickly it runs flawlessly it just shakes in neutral. Is it just the nature of the 2 stroke beast. Could I possibly have to much oil in the gas? Any thoughts would be appreciated . Here is a video

https://m.youtube.com/watch?v=h7cwtGcXoMI

 

[robert graham]

My C90 2 stroke shakes some at idle....smoothes out above 1000RPM's....maybe your motor will smooth out some after it's run and broken in a bit....

 

[99yam40]

Yes you can put too much oil in the gas,
but pilot jets plugged would be my guess.
Clean the carbs