i have a 1998 cr 125r and im guessin urs should be close to about half a litre.
there is a bleeder screw at the bottom of the case, take that out, fill it until oil spills out then replace the screw and you should be good.
good luck
32:1
1.7 quarts
0.6 quarts
3.9 quarts.
3.9 US Quarts
4.3 L
Honda manual recommends 10w-40 and the capacity is 3.3 US Quarts.
i have the same bike it takes 750ml of gear oil
2.32 quarts
4.5 litres
4.6 quarts with filter change
3.8 Ltrs