I have a Ryobi 700R trimmer - I need to know how to replace the pull cord - Tom

If your pull cord is still attached to the grab handle, it's likely your spring is still wound. Follow this if this is the case:
1. Disconnect the shaft by removing the small set screw and the clamp - pull the shaft out of the engine body.
2. Remove the recoil assembly (About 5-5 torx bolts).
3. Pull the cord until the stops and use a small piece of wood acting as a wedge to jam between the recoil and the housing.
4. Cut the line and pull the knotted terminating end from the hosing.
5. Keep the wedge tight so it does not spin back. If this happens, you will simply need to rewind the spring back (about five turns) and re-wedge it.

Use proper line and reverse for new line. Good luck!