thats the joy of friends with no idea basicaly under the recoil pully ( what your rope goes around ) you will find a spring one end connects to pully the other connects to the housing would say either its not connected or it broken.
can be a little tricky if you have not done one before
easy answer is to take the recoil complete to local repair centre should be a cheap fix if it not needing parts i would charge no more than £10
daz
May 2011