Sorry, the reason why nobody answered you is we have no idea what autopilot board you are using. Between this thread and your other one, your pics show the receiver which is pretty much useless to us. From the pics, you don't seem to be using either APM1.0 or 2.0 (your board looks black or brown), so you must follow the directions for that board.
If it's some sort of APM1.0 diy rig, then for a hexa, you need to follow HEXA directions and they say outputs 5and 6 are NOT USED but rather 7 and 8. I covered a similiar discussion on the "why" behind that here.
Finally, I'm going to be hard about this, but WHY ARE YOU TESTING WITH PROPS ON THE MOTORS???????
If you know the motors don't work right yet, do not put props on!!!! I mean seriously, what directions or tutorial did you even follow? Sorry if I'm being harsh here but you already hurt yourself.
If you want a basic test to see if your system works, I even made a video here and this test would work with ANY multirotor heli in any stabilize mode.
<iframe width="475" height="267" src="http://www.youtube.com/embed/YfjnIX78oSY" frameborder="0" allowfullscreen></iframe>
From the photos in your other posting, looks like you're running a variant of the KK Multicopter control board.
Here is a good FAQ on setting it up: http://rcexplorer.se/page14/kkguide/kkguide/hex.html