4.11.6 Start
When starting the engine, more gasoline should flow into its cylinders. This is achieved due to a strong enrichment of the mixture as a result of increased fuel supply to the mixing chamber of the carburetor and to the walls of the intake manifold.
When the engine starts, the vacuum, which is created inside the carburetor diffuser is not enough for fuel to start flowing through the disperser. An air shutter is used for creating the vacuum, which is necessary for starting the engine. It is covered during start-up, as a result of which the required amount of fuel starts flowing through the disperser. Once the engine has started to run and warmed up, the air shutter is fully opened again.
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