I am also facing same issue, got stucked with almost 5 mechanics, spent almost 6k on carb. Butt total wast, replaced whole carb kit, jets, remade butterfly, but still 7km/ltr. Now I am planning to switch carb with either a kabli or new China made. Kabli Cost almost 8k, n new China is 12k. Kabli is still doubtfull if I could not get the good one then?? Please suggest me what option is good? Waiting please...