You might be able to make one out of a rear derailur cable. Use the cover of the throttle cable if it is still good. Remove the old cable and see the way the end looks on the end where goes into the carburator. Grind the end if needed to look like that end. If you do not have a grinder, go spend the $10 you will have spent on the cable and shipping, at a pawn shop for the cheapest bench grinder. Also if this is a 2 ended cable you can tie a knot in the end of the cable or you can go to a motorcycle and/or bicycle shop and buy a cable end with a screw at the end that you can tighten to the end of the cable. If that cable goes bad , you can remove that cable from the screw on cable end and reuse the screw on cable end. Who wants to wait 2 weeks for a cable.