I think the KAV74 may only have been supplied with an impulse starter. In addition to the thread that gizmo posted, this may be the only other KAV74-related thread we have:
https://www.outdoorking-forum.com.au/forum/u...mp;Words=kav74&Search=true#Post32496

I wonder if it is the same starter that was fitted to the much more common 4 stroke Kirby Lauson? Finding parts specifically for that 2 stroke is unlikely to be easy, and some of the bolt-on bits look rather similar.