Hi everyone. Doing some work on my 82 FA50 that's long overdue, the brakes are super worn so I decided to replace front and rear with some new shoes. When trying to adjust the front brake control arm, I loosened the bolt and now the arm moves freely, with one issue--I can't seem to get it to slide into those grooves, no matter how hard I try. Used WD40 to try and get it to slide back in, tightened it back down with the same bolt/nut combo that held it in place, with no luck. It's super frustrating not being able to figure out a stupid brake adjuster after redoing the piston/cylinder, lights, etc. haha. Any advice here?