Abi tk mixture ko set kea hi nahi han abi tk 2.5 company setting pe bht aala performence hy. Pr yeh papér setting hy or temperature, exgaust, altitude k hisab se setting change hoti hyn. Or basic formula hy... to find the highest idle rpm through air mixture screw or maine aise b set kea hy mixture jo k almost company setting k qarib hi hy.