Hmm. You really shouldn't need to adjust anything. Try remvoing them and re-installing-- and make sure that the blinker is perfectly level and that all of the slots and tabs are ligned up w/ their mates before pushing it in and getting the "click". Sounds to me like its not seated correctly-- I think it might be possible to get the lights to click but not get the blinker to slide in in the proper way. Do you have the same problem on both sides?