Brian,

I would say that if they truly moved it, it was because the cable was
originally broken, and they shortened it.

Any motorcycle repair shop should be able to replace the cable for a
mechanic who has disassembled the system and has the correct
measurements.

If this scenario is true, the repair was done second best, and yes you
could reverse it.

Sincerely,

Mark Keller
91 Carat
Cowichan Bay, BC