The forks on my Evo were very disappointing and they were adjustable for preload, compression and rebound damping (on paper anyway!). So your non-adjustable ones must be even worse.
The springs in the Evo were progressive and gave a very 'crashy' ride. I'm guessing that the 796 ones are the same. If you're opening your forks up to change the oil, then consider swapping the springs for linear ones tailored to your weight.
You'll still be stuck with standard unadjustable damping of course, so perhaps an Andreani conversion might appeal?
For Showa forks
https://www.brooksuspension.co.uk/fo...t-showa-10-14/
For Marzocchi forks
https://www.brooksuspension.co.uk/fo...cchi-43-10-14/
If you're just replacing the oil, then the standard capacity is 500cm3 of 7.5w per leg.
Have a look at Chrisp.'s thread regarding fork upgrades:
http://www.ukmonster.co.uk/monster/s...ad.php?t=51391
I followed his advice and now have a combination of K-tech and Maxton internals. It's definitely money well spent
