I need a lots of HELP !!!

[dob4o]

Hi everyone, I have a toyota tercel 1985 3 doors heatch. And from 6-7 months somethimes the engine starts working on 3 cylinders and the sparks got black and dirty. Somethimes when I clean the spark it's go again normally, but 1 montch ago the car stop permanently I go to my neighbour who have a auto repair garage and he said that this is not the cables which I changed, it is not the sparks, it's not the distributor cap - and he open the engine. He make it like new but after I get it after 3-4 days I have the same problem - Is there anyone who have the same problem and how I can repair it ??? Please I'll be very happy and thankful to everyone who help me. 10x

[jijiandfarmgang]

Are you sure he didnt just change the spark plugs? I dont really understand, the mechanic repaired it but didnt give you an explanation. First ask him what he did and answer your own question. It also sounds like your carb is running too rich.

[drehtwnftbl]

yep that's what i was going to say, not all the fuel is buring off thus it's turning to carbon and it's coating your plugs, look in your manufacturer's maintinence book and check out the adjusting screws on the carburetor.