1985 CB650SC DOHC USA forks

[Blacksasquatch]

Hi there I can't seem to find a manual for this Bike so here goes.
I'm about to replace the fork seals on this but I've noticed that it has air valves. Never had to work on these before and I might sound a bit thick but what do I pump into them? Is it just pump it like a tire or something else?
What psi do I put in?
Sorry again if these are silly questions.
Cheers in advance

[cb650]

they usually take very little pressure. 8 to 12 lbs. a tire pump is best to keep from blowing them out

[Blacksasquatch]

Cheers for that.
Anyone able to tell me how much oil to put in so far searching online gives me different quantities.
Thanx in advance