main jet 160
pilot jet 55
jet needle dyno jet 4 clip down from the top
two brother slip on
3+3 cut out
extended fuel screw 3 turns out
30 to 80 degrees
2008 drz 400sm
cannt stop the decleration on back firing. change the needle slip from 2,3,4 tried them all.
bike runs best with the fuel screw set at 1 1/2 out and needle clip 2 down from top, but pops 2 times on deceration between 30 to 35 mph.
dont know if i need a diffrent jet needle ,or main jet is to lean.
at 3 turns out bike turns off some time at idle.