I have a number of LD.s and produced the You Tube clip here that may help. Let me know if you need any further information / diagrams or part numbers.....
https://www.youtube.com/watch?v=KdCcN0H ... e=youtu.beI should also mention that in regards to the Outer Sheathe problems you mention, I have had to use a cable tie to hold the cable sheathe in place on the handle bar and on a few LD's, to stop the sheath from moving. No idea why. Some require a cable tie and some do not. No obvious reason that I can see. It;s as though some do not operate as smoothly as others. Remember the cable sheathe is also (metal fixings tie - similar to cable tie) tied on the frame in a few areas which should stop it moving as well, so it depends how and where the first metal / cable tie is fixed to the frame. I have fixed a cable tie on the handlebar on a few of mine that have a similar problem to what your experiencing
If you want any further info or diagrams, let me know.
All the best......