Carburetor: operation, maintenance and price

The carburetor is mainly used on older gasoline cars because it has been replaced by injection system... If your car is equipped with a carburetor, but you do not know how to operate and maintain it. car part, this article was made for you!

🚗 How does the carburetor work?

Le carburetor - This is an automotive spare part that is installed on gasoline engines. Its role is to obtain the optimum air-fuel mixture for maximum energy efficiency. Mostly found on older cars (before 1993), motorcycles, or garden tools.

If you have a recent car, you shouldn't have it because it has now been replaced with a new one. system for injection and throttle body. The carburetor is a mechanical part, unlike injectors, which are electronic.

We will now explain in detail how the carburetor works. Thus, the carburetor must mix air and fuel correctly to get the best blast. Specifically, the air box directs air to the carburetor.

Le air filter it is then used to filter and clean the air collected by the carburetor for mixing with the gasoline that will be sprayed from the injectors. Thus, the carburetor is also designed to control the flow of gasoline directed by the injectors. The flow rate must be constant.

Before reaching the jets, the fuel is placed in the tank, the level of which must be uniform. There is a float to control this level. If the level drops, the float will be triggered and fuel will be added to the tank. If the level is too high, there is a hose to drain the excess fuel.

Once the air and fuel are mixed, the valve opens, the piston is at its lowest point, and everything can be sent to the combustion chamber.

There are as many carburetors as there are cylinders, so there are usually four.

🔍 What are the symptoms of the HS carburetor?

There are certain signs that should alert you to the condition of your carburetor. Here is a list, but in all cases, we advise you to head to the garage to make sure your carburetor is the problem:

• Your car stalls ;
• Do you feel the jerks ;
• Your engine loses power.

There can be many reasons for the failure of the carburetor. The most common of these are: clogged air duct, clogged nozzle, excess gasoline that fills the carburetor, air leakage, etc.

If your carburetor is defective, don't wait to go to the garage because you quickly risk losing your ability to drive and in addition to damage to other components in your engine.

🔧 How to adjust the carburetor?

To tune the carburetor, you actually have to adjust the position of the float in the bowl. This will inject the exact amount of fuel to keep your engine running properly. Therefore, two steps must be followed to properly adjust the carburetor.

Step 1: Measure the current amount of fuel

For this you need a tube. Insert the first end into the hole in the container and then the other end into the graduated container. The amount of liquid you see in your container is equal to the amount in the float chamber.

Step 2: adjust the float

You will need to disassemble the carburetor and disassemble the bowl. You will see a kind of tab on the side of the float: it will be used to adjust its position.

Indeed, the tab allows you to adjust the fuel flow: if you pull the tab down, you have more fuel. If you pull the tab up, you have less fuel!

👨‍🔧 How to clean the carburetor?

If you notice symptoms of a clogged or malfunctioning carburetor, one solution is to completely clean the carburetor. We explain in detail how to clean each element of your carburetor.

Required material:

• Stepping key
• Brush
• Petrol
• Pelvis
• Metal brush
• Iron wool

Step 1: Remove the carburetor

To remove the carburetor, start by removing the air filter (we recommend that you refer to the air filter removal procedure in your vehicle manual). Then, unhook the throttle return spring and fuel line. Then unscrew the carburetor mounting nuts with a wrench. Then you can disconnect the regulator from the carburetor.

Step 2: Disassemble the carburetor

Start by cleaning the outside of the carburetors. This will help prevent dirt or dust from getting inside the carburetor when you are about to disassemble it.

You can clean the outside of the carburetor with a spray can, which is easy to find on the market. After cleaning the carburetor, you can remove it.

Step 3: clean the cover parts

Start by removing the filter located at the inlet to the tank, under the fuel line. After removing the filter, you can clean it in a basin of gasoline or a special cleaner. Replace the filter after thorough cleaning.

Also check other parts of the cover such as the needle, air intake, air damper, or drain pump duct. They must all be perfectly clean for the carburetor to function properly.

Step 4: clean the carburetor body

Start by checking the bottom of the tank: if you notice brown residue, you can clean it with a brush and gasoline or a special cleaner. However, if you notice a rather white coating, remove it with a metal brush.

Then check the nozzles and gently clean them if they are clogged. If you cannot clear them, you will have no choice but to change them. Then do not forget to check the carburetor injector and venturi and, if necessary, clean them with steel wool or a brush soaked in gasoline.

Step 5: clean the suction pump

The recuperation pump is in the form of a brass piston or diaphragm. If the suction pump is a displacement pump, remove it and make sure it is clean. Clean if necessary. If the carburetor booster pump is a diaphragm, you will need to remove the cover and then check the condition of the diaphragm.

Step 6: assemble the carburetor

After all of these items have been checked and your carburetor is very clean, you can reassemble it by following the same steps as when disassembling it. Also remember to assemble the air filter. Your carburetor is now in perfect condition!

💰 How much does it cost to clean the carburetors?

On average, you will need to calculate from 80 to 200 euros Have your carburetors cleaned by a professional. This price, of course, depends on your vehicle model and the difficulty of accessing the carburetors.

For a list of the best garages near you where you can clean your carburetor, you can use our platform and get a quote to the nearest euro in a garage in your city!