Odyssey Sunroof - how to adjust/lube/service?

My wife's '97 Odyssey has a sunroof and for the lasts few weeks the sunroof
has been hard to open. We quit opening it until I could figure out what
needed to be serviced. I do not have a shop manual and my manual for our
'93 Accord (Haynes) does not have anything in it about Sunroofs. The roof
sort of stalls and needs help moving.

I suspect it needs to be lubricated and maybe adjusted. I also want to know
recommended ways to clean out the drain might be. I suspect it is getting
clogged too. Any of you know where that needs to be done? Is there a
website with drawings? My friend had a shop manual but sold it along with
his '96 just about a year ago.

Thanks!
KWW