Z1OwnersClub GB

My mate has re-built his forks on his Z after the seals were leaking, now on riding the bike it doesn't absorb the road as well and is a very hard ride.
Fork oil was used at first then ATF but neither has changed the ride. On reading the Kawasaki manual it says to use SAE 10w.
Has anyone any thoughts as to whether it could be down to the oil or something else.

Thanks Sneck

Hard ride
Assume the oil qty has been checked...... correct level
Do the forks compress smoothly
Try fork action after drainiing oil
They are usually quite limp in std format, expescially if original springs, etc.
Did seals & oil on my 1000 and they are pretty 'bouncy', defo not firm/hard

Thanks will report back

Done the seals on my A2 before yorkshire rally and efinetley not firm as bouncy as they always were