My '85 GL has had a weird condition for quite a while now....after long
downhill descents (3/4mile+) with my foot off the throttle the motor doesn't
run properly when I reach flat ground again.  When I put my foot back on the
thottle the motor feels sluggish, sounds bogged down and stumbles and bucks
alot.  This bogging etc. then lasts for about a mile or two before finally
going away as quickly as it came.  I'm guessing it may be the weak AFM
spring trouble that I have seen frequently posted.  Does this sound like the
likely culprit?  Otherwise, though everything seems fine...I get good
mileage, no black smoke, pass emissions tests etc.
Thanks,
Mark