My recoil inside the pullstart

I invert and secure the housing and rewind the spring large coil to small (need eye protection, both hands and no women around work area!). I'm right handed so i tension the spring enough to insert it inside the previous coil while holding what has already been installed with my left about 180° from my right hand. The tension will hold the spring in the housing once completely inserted. Then bend slightly the inner most part to engage the starter spool. It will require about 2 turns of pretension to retract properly.
If you're lucky you can pull the cord out enough for a pretension then slightly raise and add the withdrawn cord to the spool.

Both methods require about 2 turns of pretension to rewind the cord when pulled.