How do I fix this?

[max_altidude]

The top of my blade 400 the holds the swashplate shakes alot when i power up, this means the rest of the heli does as well, how do i fix this. Some 1 plz help me!!

[chugga-bug]

Have you crashed it before?
If so did you change the main and feathering shafts?

The only reason for a shake is something bent or out of balance.

[Balders]

Does it settle down once the head is up to speed? If so maybe the clamps are a bit tight and the blades aren't centre-ing up quick enough. Try pulling the tips of the blades straight before spool up.

[Rotorhead]

Do you pull the blades out straight or just kind of straight, if they are not pulled straight then it will wobble until they are pulled out when the head speeds up.

Even if you answer yes they are straight before I power up, the heli can still shake, it could just be you are passing through the helis RPM band where it starts to go into ground resonance, if so, then there is nothing you can do other than either power up even more to get out of it, or power down, which you obviously have to do to take off or land anyway.