If your chainsaw is showing any of these symptoms; replacing the starter spring could solve your problem:

1) Starter rope won’t recoil or rewind after pulling
2) Starter rope won’t retract fully back into the housing

Tools used for this repair/replacement:

1) Phillip’s screwdriver
2) Torx drivers
3) Long-nosed pliers
4) Scissors or wire cutters (optional)
5) Safety glasses and protective gloves