I've done the forks yesterday and i can confirm what was said before about the rod puller.
When the rod is pulled oil emerges from the top of the rod. On the right fork (ES) which provides extension dumping this happens in a copious way... so i followed advice above and drilled a hole in the homemade rod pulled and also covered it with a finger of a rubber glove (otherwise it will throw a jet of oil at 2 mt distance when you pull up ..trust me...)
I had no need for a dumper holder to screw the bottom bolt/washer out / back. (I used an impact driver to screw it out)
Thought i had to get hep inserting the spring back in the fork and pushing against the wall to have some grip on the right fork that was opposing more resistance (the dumper was free rotating inside the fork...grrr)
Once the thread was at the end of its travel i was able to torque it properly without any further issues.
As the Fork oil is concerned
it is either the reccomended
Yamalube Suspension fork oil 01
or Kayaba (which i believe is identical)
The Characteristics of the oil are
15.60 CST@40, 3.45 CST@100, VI=150 (Viscosity Index)
Another option (not sure if it is also ava in US) is the
FUCHS SILKOLENE 02 SYNTHETIC
The Characteristics of the oil are
17,94 CST@40, 5,27 CST@100, VI=260 (It shall be more consistent within wider Temp ranges)
I've used this one (it is fully synthetic).
The oils is very thin and it gets messy...lol
The forks are now back in place... if sun decides to come back i'll do a short test ride
Few pics of the dismantling / remounting below.
I would like to thank everyone for the very precious hints and very useful comments in this thread
Out