David try this there should be a piece of flat metal that is horizontal by the carb. bowl that you can push back and forth, it should have a hole in it. The end of that wire should go into that hole and you need to crimp that wire so that it stays in the hole attached to that piece I described that moves horizontally. Based by the picture of your tiller this wire is going control your throttle so that your tines turn.
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David try this there should be a piece of flat metal that is horizontal by the carb. bowl that you can push back and forth, it should have a hole in it. The end of that wire should go into that hole and you need to crimp that wire so that it stays in the hole attached to that piece I described that moves horizontally. Based by the picture of your tiller this wire is going control your throttle so that your tines turn.