Hello everyone! ... I have a problem with my fiat 147 mod 88 naphtha engine 1300. I changed from weck 32 ICEV xq was very incomplete and the throttle shaft did not turn very well and now does not start at all right .. I have to prime it and start it several times to start. The strange thing is that the old and incomplete donkey started in the winter of one and with the new and complete not ... both have the same chicler 50 low, 165 air, 117 main

As you say, it is just a problem of carburetor regulation. Probably very open air

Hello I agree with the opinion of BIN2013. I also think that if the carburetor is new, everything should be fine. But sometimes a particle of garbage that clogs a hole can arrive. Verify that the level is correct. If you see it from above without the air filter with the engine OFF and you move the throttle by hand right there in the carburetor. every time you do it you should see a jet of gasoline coming out of the chop pump. This always does when you step on the accelerator. if you step on it several times you inject more gasoline. This gasoline is taken from the tank where the float is. Check the gasket where the carburetor rests. It must seal perfectly, and have the holes it carries, if outside air is filtered it does not work. Sometimes the base nuts are tightened too much and the base aluminum is twisted. In the lower part of the carburetor body there must be a slow-running regulator screw, if you remove it you will see that it ends at the tip, and there is also a spring that prevents it from rotating alone. This you should place in two or three laps from tight. But the final adjustment must be done at the point that accelerates the most. since it works in combination with the butterfly. And it will be a fine adjustment. Check that the gasoline pump pulls well. If you have a servo brake check that it is ok. Since if it is broken, air enters the intake manifold. If you checked everything keep in mind that it can also be a problem of ignition. check the spark plugs and the spark in each of them, Also look in the dark many times you see spark leaks in the wires, if the wires are anti-noise it happens many times that they cut or do not let all the energy for the spark pass . regards look at this: http://www.fiat-uno.ru/fiatuno-76.html