Hello,
Last week I maiden my brand new E700 with a Spirit pro.
Before the maiden I checked the vibrations with tail blades on and got rather high values in the high frequencies. I already flew with high vibs on my Logo 500 so just wanted to maiden it and do more checks after that.
Coming back, removing the tail blades and blades holders I still had vibs which was impossible. Then I realised these vibs came from the motor...
Today, I removed the main gear to get only motor running. I got this :

The motor in an Align 750MX. It was never used before.
What should I do?
Can I fly like this ?
Is there any way to balance the motor?
Could it be related to the motor mount ? (there is a counter bearing)
Thanks for your help.