Gday k20
dont worry too much about how many mls. I just did my 1983 cr whic i reckon has the same forks apart from the disc front end, with the spring removed and the fork full compressed i filled it up to 130mm from the top i pumped it upa nd down a bit to bleed it then checked the level, for dirt track i am using 15wt maybe for moto x 10wt would be beter. i reckon i used about 1.2 lt all up. dont shoot u self in the eye!
Cheers Brett