Salam to all .. i need some advise ... My daily bike running is 80-100 km . i travel on china 70cc its not comfortable bike i get really tired .... For long routes cg125 is best ... But its fuel average is costly .. Someone advised me to replace 125 carburetor with honda cd70 carburetor then it will give fuel average of 55km app. I need expert advise ... Is it possible .. Will it damage bike engine ??? Please expert help needed