Consume Demacious Renault 9 1.6 Txe

Hello everyone I have the prosthemite that my car consumes dema, the truth I am very happy with it I have 3 years ago, it has some details for the time of use is model 91, but the most uncomfortable the amount of gasoline that is eaten, I want if someone knows what I can do to improve this, if you can put another carburetor and which eternal thanks

You can shrink or decrease the diameter of the gum and with that you will save fuel, so it would be good to make a basic refinement, change spark plugs air and fuel filter filter