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14.7 to 1 is the sweet spot.

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15y ago

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The air fuel ratio of the petrol engine is controlled by?

The air fuel ratio of the petrol engine is controlled by Carburetor


What does carburetor do?

Mixes fuel and air at the desired ratio for burning.


Where is the carburetor on a 1991 Dodge dynasty engine located?

I believe that the carburetor type fuel/ air ratio delivery system was replaced by Fuel Injection, no carburetor to the best of my knowledge.


What are the functions of the carburetor?

to supply the engine a mix of air and fuel at 14.7 to 1 ratio.


What is the air to fuel carburetor ratio in a 1969 Ford F100?

14.7 to 1 is the sweet spot.


How to adjust air fuel ratio holley 4160?

To adjust the air-fuel ratio on a Holley 4160 carburetor, first, ensure the engine is at operating temperature. Then, use a vacuum gauge or an air-fuel ratio meter to monitor performance. Adjust the idle mixture screws, located on the sides of the carburetor, by turning them clockwise to lean the mixture and counterclockwise to enrich it, aiming for the highest vacuum reading or optimal air-fuel ratio. For more precise tuning, consider adjusting the main jets if needed, but this typically requires removing the carburetor.


What is the purpose of a carburetor vent valve?

The purpose of a carburetor vent valve is to regulate the airflow and fuel mixture entering the carburetor, ensuring optimal engine performance. It allows for the proper venting of air and fuel vapors, preventing pressure build-up and enabling the carburetor to maintain the correct fuel-to-air ratio during various operating conditions. This helps improve engine efficiency, responsiveness, and overall fuel economy.


What device mixes air and petrol gas for the internal combustion engine?

The device that mixes air and petrol gas for an internal combustion engine is called a carburetor. It is responsible for blending the air and fuel in the correct ratio before delivering it to the engine for combustion.


How does carburetor works?

A carburetor mixes air and fuel in appropriate proportions. Air and Liquid fuel are the inputs to the carburetor at different points of the carburetor. Due to suction created by the working engine , atmosperic Air is accelerated through the venturi in the carburetor. Accelerating Air sucks Fuel into the venturi at its center from a level regulated liquid fuel pot in the carburetor,due to the venturi action. (Bernoulli's Principle) During the process of sucking the fuel is atomised /becomes a mist , as it enters the venturi. The atomised fuel then evaporates and mixes with the air uniformly. This uniform gaseous mixture of fuel and air is the out put of the carburetor. This gaseous mixture then enters into engine cylinders for combustion.


How does a carburetor work?

A carburetor mixes air and fuel in appropriate proportions. Air and Liquid fuel are the inputs to the carburetor at different points of the carburetor. Due to suction created by the working engine , atmosperic Air is accelerated through the venturi in the carburetor. Accelerating Air sucks Fuel into the venturi at its center from a level regulated liquid fuel pot in the carburetor,due to the venturi action. (Bernoulli's Principle) During the process of sucking the fuel is atomised /becomes a mist , as it enters the venturi. The atomised fuel then evaporates and mixes with the air uniformly. This uniform gaseous mixture of fuel and air is the out put of the carburetor. This gaseous mixture then enters into engine cylinders for combustion.


How would you change the air-fuel ratio in an engine?

on a computer controlled vehicle you have to reprogram the computer and on an older vehicle with a carburetor you have to change the jets in the carb.


How do you fix improper gas air mixture?

To fix an improper gas-air mixture, you may need to adjust the carburetor settings on the engine. This can involve tweaking the air-fuel ratio or adjusting the idle speed screw. If the issue persists, it may be necessary to clean or replace the carburetor components to ensure proper fuel delivery.