I recently went to 14' ape hangers on my soft tail deuce. I replaced all the cables but having problem with it not wanting to move when driving it. The throttle opens up, but it doesn't seem to be transferring to the bike, it will barley move and you have to easily move the throttle for it to gain any kind of speed.

 

Sounds like you need to adjust the cable length and/or the way the cables are routed is causing them to bind. Did you adjust the throttle and idle cable? Did you check that the cables move freely with bars forward, turned left and right?