So I took my S4R to Desmoto in SF for 6K mile service yesterday. (As they were recommended here, and also from Micheal (mojotown owner).
I called them Wednesday, asked about how much would it cost, and what kind of work included.
(And I explained what I do by myself, and what I wouldn't do myself ... )
I was told that "6k mile service" is going to be $935 (and will take all day), but since I do most of the routine maintenance (such as oil & oil filter, spark plugs, air filter ... ) myself, they recommended to do only major work, which are
Valve adjustment
Rocker wear check
Adjust timing belt tension
The total came out $385.50 ($5.50 for gaskets, the rest Labor for 4 hours ).
I went first in the morning ( 9 AM ) and by 1:30 PM, the job was done. (So I could get back to Marin before Friday evening traffic on 101 N .)
I'm pretty happy the way thing went. (and the bike actually runs noticeably better, especially right off the idle. Didn't think "just" doing the belt tension and valve adjustment actually makes this much difference. )
Anyway, just wanted to say thanks for everyone suggesting Desmoto.
Have a nice weekend.