CX2 acts like on a big swing why?

[Irvin]

My heli seems to be on a big swing. Sometimes going a head and back other times in a oval.
Is it the flybar or what could it be.
Thanks for any help in advance.

[Irvin]

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[astroflyer]

sounds like the toilet bowl effect. the flybar needs to be very free with no binding.

[Paul Hinz]

Also check the pivot holes on the blades. Sometimes there is a small amount of mold flashing on the edge of the pivot hole that causes the blades to bind.

Paul

[balbs]

Make sure that the flybar link is adjusted so that the flybar is parallel to the top rotor blades when they spin.