technial track jettig please help

[sasa]

I ask for your opinion what Jetting for technical track now i have mj170 pilot42 air screw 1 3/4 needle clip1 n1ee on my gg ec 300 2000 spark plug is brown litle rich but the engine do not run well in first gear at low rev i am riding from 1000ft-5000ft sorry for my English