Welcome to the forum!
Keeping in mind parts are hard for you to obtain, you can make a small change in jetting by adjusting your float height. Maybe check to see if you can lower the float slightly which will lean out your jetting.
Is your slide notched? Not saying that you should or should not but it is another tuning tool.
http://www.gasgasrider.org/forum/sho...ht=slide+notch