1) Turn valve handle all the way in and take notice how far the needle comes out.
*** then reverse the valve handle,until the needle is not shown (hidden). This way the needle will not scratch the cold water copper tube when installing. ***
2) Place the saddle valve on the cold water pipe as shown.
3) Tighten the screw,use good pressure. But,not so much pressure such that it will break the copper pipe.
4) Next,install the 1/4" tubing as shown.
5) Now turn the valve handle until the needed goes into the copper pipe. Then reverse the needle until it comes back out,and you will hear the running water.
Video: See SAMPLE video link for reference. It may not be the exact saddle valve you have but is good for visual reference. Go to the 4:00 minute mark of the video.