Seen a lot of reports of these seizing up, I guess more than regular lube would prevent this.  I bought my first Fazer only to find that both were seized.  Given that in many ways this bike has been described as a very good package/collection of parts most of which works very well, I was very surprised how difficult it was to locate other bikes that might be suitable donors given that Yamaha does not list these adjusters as separate parts - you want new, purchase a complete lower fork leg!
If you are lucky you might be able de-seize them, hours of fun.  One day trawling internet/e-bay spotted forks from FZR1000 and it looked very much like they had same adjusters - bit the bullet bought second hand lower leg with working adjuster - same dimensions, it fits........
I guess just in case buy and fit a pair of these - winner.
If somebody already has discovered and reported this then no harm done but if not, great, hope it helps somebody.

41 years, 12 year gap when got wed, 28 bikes, 3 Hondas, 3 Yamahas, 2 Triumphs, 1 Cagiva, 1 BMW, 1 Suzuki and 17 Kawasakis, later, I find myself pleasantly surprised and very pleased I have one of these bikes.  Standout bikes for me over the years RD250C, Z1000 Mk2, ZRX1200 and GSXR1000 but as you can tell love my Kwacks, the bigger the better.  This bike, 2002 Fazer 1000, could very easily be added to my short list of faves.


Greetings to one and all, from Kingdom of Fife, shiny side up please and take care, especially at the mo.