Originally posted by davidmanning
The fact that the outer is rusted in the saddle tube would not necessarily freeze the steering
DM(swing low sweet chariot)
The outer does not go into the tube. The outer is held against the end of the tube by the big nut. The inner cable is terminated by the bar which slides whithin the tube, which is part of the engine bracket. If this is seized, the steering most certainly will not move.
If you want to check the helm unit, undo the big nut completely and when you turn the steering wheel the outer will move along the inner cable and this will move the nut away from the steering tube. This will only happen in one direction.