EXI 450 - problem with gyro?

[savasp2]

i recently picked up a exi 450 heli, and during my first test flight the tail was wambling right to left and oposite. The gyro is the WK-GO11 and a digitall servo. i have a video attached to see it. Thanks.

gyro problem - walkera wg-011 (0 min 31 sec)

[buster91dg]

your problem is that you have to turn dorn the gain in your gyro that its called tail wagging caused by to much gain do u adjust your gyro through the radio or on the gyro it self