QR valve clearance adjustment?

[Lee Koloszyc]

Probably because the QR's aren't hydraulic.  The QR25 has direct acting
cams, there is no rocker arms.  There are buckets that sit on top of the
valve springs that the cam presses directly on.  This buckets come in
various sizes to adjust valve clearance.

Lee
<< Correct they are Hydraulic >>

How come I don't see  hydraulic mechanisms from the FSM, I was expecting it
is the same with SR but didn't find any...