Thanks Gizmo, Looks like mine has a different setup to the ones in Jack's info, probably because of the Zenith carby. If you take a look at my photos, the choke wire is the bottom one. It has a really big curve in it, so this position is really the only place it can go to push the choke on. Then when you pull the lever back it allows the spring on the choke spindle to release, thus turning the choke off. I think I must have it right, but won't know for sure until I try to start it.
This shows the wire in CHOKE position.
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2017/07/full-10975-35034-full_10975_35027_choke.jpg)
And here is the same wire in STOP position. The green arrow indicates the screw hole where the coil wire goes. It looks like the throttle wire pulls the choke wire back until it touches the coil wire, which stops the mower.