Im not sure how much that part would cost if you could find a suitable new one. But with what that chinese crap costs new i would highly doubt that its worth fixing especially once the time is added in.
Bin it, keep the carb and coil and starter for others later down the track.
I do have a sanli OHV350 motor here that someone has tried to put on a Rover base. It will be highly unlikely that i will even look at it, but its not worth my time to strip it to get the gear out either. Id say come grab it, wont cost you stuff all, id happily swap it for a Talon starter, but that might be a fair hike seeing as you live on uranus.
Ive also go two GMC mowers with the ECO4 (i think thats what they are) motors on them. I may be able to do something with them.
