carburetor

Greetings friends I am new on the page but I find it very interesting, I have been working mechanics for the Chevrolet Vahiculos for several years, I have currently presented a carburetion problem that has been impossible to solve, the carburetor is a crescent of 2 mouths, the probloem Needle graduation, I have done everything and still burning the fuel bad

Hello, you will see my question. With ignition and advance is fine and spark plugs?

New spark plugs and cables, I did it new approximately 2 months ago, I sent it to put in time with its lamp and worked well but for 10 days it is with the problem and I have not managed to find the solution

and the fuel pump?

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