I am new to the forum, so thanks for any help. I run a 1968 FLH Shovelhead. Had to replace the drive chain recently. I am having trouble with the master link clip popping off. Have readjusted the rear tire. Checked for wear on the sprockets, all is good. Learning to wrench on my bike as I go, trying to do most things myself, is this an issue I may need a real mechanic?