OK, I had mine apart this am and put a drop of crazy glue on the gear that
is driven by the worm gear.  Now it resets very smoothly...but it only
will turn a few miles before it stops.  When I had it out, I wanted to
take off the needle and the faceplate to inspect all the gears to really
see which might be out of whack but I was scared I would break the needle
on my speedo trying to get it off.  I pried, pulled and otherwise gently
tried to get it off the central shaft..but it seemed pretty firmily
mounted on there.  Was I just being overcautious or is there a trick?
   I was hoping the one I could access with the speedo still fully
assembled might be the malfunctioning one...but no such luck, I guess.  So
now I'll have to at least get that speedo face off so I can get some
access to all the other gears and shafts.
  Is it really just B.F.F.I. that removes the needle?  "Brute Force and F--
-ing Ignorance" or is there a trick?  Thanks...Mikes article is a big
help, yes.
  Don Hanson