im having a little trouble with clutch worm screw.  im screwing it tight then 1/4 turn back but at this distance my lock nut wont stay on or is on by only a thread.  i just put chain on and cant get clutch to engage even with the worm right and a little play in plates when squeezed in.  do i need to have my clutch cover on with oil for it to engage right?  i got the clutch cover off currently.  do yall think i need to clean and oil every plate is one of my problems?

im having heck putting on a rear tire without popping tube too.  do any of yall use duck tape for rim tape?  i think my spokes might be poping the tube or pinching the tube with the spoons. idk yet.  iv tryed 2 tubed so far.  on my third one.  gotta repair thr tubed to see exactly what is going wrong.  right now i got an 71 rim on a 69 just to see if my clutch would work.  got the 69 rim to work on.  i hope the sprockets are the same cause i just broke chain for the 71 rim.  the brake stay arm is different by year.  do yall do your own tires or take them somewhere?  what to expect to pay?
thanks