adjust oil injector 95 trailboss

Hi I was doing some work on ATV and had to disconnect the oil intector cable. Its a 95 trailboss 250. I am trying to adjust the cable with the marks on the injector. I think it is middle mark of the 3 that its supposed to line up with at idle but I am not sure. I attach a picture. Let me know what you think would be appreciated thanks.

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