Before I start this is my first helicopter and I'm new to the hobby.

I have a Honey Bee Fixed Pitch with a vibration problem. Now it doesn't vibrate every time, but most times it does. It vibrates at slow and high head speeds (vibrations much worse at higher head speed, obviously). I've only got 4 batteries on it and no crashes so far. Sometimes on spin up when I get the head speed higher it stops shaking. Everything seems tight. Now from the searching I've done the two possiblities I can come up with are either blades too tight (I think one is too tight) or the blades are off track. Any help with trouble shooting would be much appreciated.

Thanks