[Kojiiro]

How would you level the forks to refill them? Would you just guess to close enough? I guess you could get to within a few mm that way.

cornerslider is right, you will need to hold that damping rod still to replace the bolt. I used a broom stick both for removal and reinstalling the bolts when I installed fork carts.

as kilo mentioned, you may also need an impact wrench. Not sure if you’ll have enough room for that if you don’t remove the forks first. I got lucky and took one off with just a ratchet, but had to use an impact for the second one. Stripping that bolt would suck, so better to use an impact wrench.

If you stripped that bolt just on clip ons from overtightening, I highly suggest you learn to be more careful. Clip on bolt is an easy fix. Breaking the bolt from a fork leg will down your bike for a few days, grt oil everywhere and in general not be very fun for you.
I honestly feel your short cut way is gonna cost more time than just dismounting thr fork tubes and doing it right thr first time.

i usually pull both forks off, which takes about 10-15 minutes, including the tire, brake caliper, clutch perch, master cylinder/brake lever, clip ons, put the tubes in an old handlebar attached to a vise, and re I’ve the end caps. The I remove internals, drain and have them sit upside down while I eat lunch so they can drain more.

 

[Kojiiro]

Yeah, I'm well aware of the pressure of the bikes weight so i plan to lift the front wheel from the ground by lifting the bike carefully with woodblock and car jack.

If you have an a frame ladder, it’s easier to just suspend it with the ladder and a ratchet tie down.