Hello everyone!!
                             Please help me regarding the stability problem of my quad qhich is neither x shaped nor + shaped. Iam using kk 2.0 lcd fc with firmware 1.2. Here is the link to the video.https://www.youtube.com/watch?v=t7hGP7wL-Vo&feature=youtube_gdata_player

You should setup the KK 2.0 for X motor layout.
As i cannot see your fc in the video, make sure the orientation of the board is as per an x shaped frame and the motors are rotating in the right direction with correct props.

Thanks for your reply sir.Yes iam using kk2.0 in x configuration.How to differentiate clock wise and ccw props.Motor rotations are in correct direction.

Well what i do is fit the prop on motor 1 and give it a spin and check the thrust direction, it should be downwards, and accordingly fit rest of the props.
Most of the props have size written on them blades of the props, and thats the side facing upwards,

Anyways check the link below

http://multicopterhacks.com/question/5/how-can-i-tell-if-a-propeller-is-cw-or-ccw/

Another good way of checking prop rotation just by looking at the prop is to see which side the pitch rises on the blade. The direction it rises is the direction of the prop's rotation as the blade catches the air on the top and pushes it downwards to create lift. Have attached some pics for help. Happy flying...

CCW



CW

A good way to check motor rotation is to wrap a Postit (or any piece of paper stuck with tape) around the motor shaft.

Hey Satish that is a deadcat 450 frame you are using right..this vid will help you to get your PID settings correct....Happy Flying...

Thank you guys  ...Iam working on it.