Learning how to clean your carburetor on a pressure washer will save you cost and time. Any problems that occur in smaller engines of pressure washers or lawnmowers can be easily rectified with a very simple diagnosis. Always remember to make sure that the air that comes into your carburetor is free of dirt or dust by evaluating the air filter. In case the filter is clogged, you then probably note the emissions of black smoke coming from the exhaust. Furthermore, the connection to the carburetor’s throttle and choke plates gets sticky because of dirt accumulation. Due to the engine’s constant vibration and longtime uses, the screws on your carburetor settings are somehow affected.
The dirt on the carburetor ought to be removed and thorough cleaning can be achieved using appropriate carburetor cleaners. Even passages inside a carburetor can get clogged because of the debris experienced by the engines. The deposits inside a carburetor might clog the air outlets and fuel path adversely affecting the engine’s overall performance. The good news is that the carburetor can be taken out, thoroughly cleaned and replaced.
What A Carburetor Does?
Before we get into the details of cleaning a carburetor, it is essential to understand how a carburetor works in the system of the pressure washer.
Understanding the work of a carburetor will greatly help you learn how to clean and maintain it perfectly. A carburetor is important for making sure that there is the right air-to-fuel mixture for a pressure washer to work as desired. The air-to-fuel ratio ought to be 12:1 or 15:1. You must ensure the air-to-fuel ratio remains within this level if you want it to work effectively.
If the carburetor becomes clogged, you might eventually have issues with the fuel being burnt incorrectly. In the end, you could end up using lots of fuel than before when you had no issue.
Signs The Carburetor Needs Cleaning
There is no reason to open a carburetor before knowing whether it is clogged. All you need to do is watch for some common signs that your carburetor needs cleaning. Following is a list of what to look out for:
- If a carburetor is clogged, you will find your pressure washer not working or needs lots of effort to start.
- When your pressure washer generates a lot of popping and sneezing sounds, which shows there is an imbalance between the fuel and air mixture.
- If there is black smoke emitted by the pressure washer.
- If the carburetor is blocked, the fuel path will be blocked and ultimately result in fuel overflow in your carburetor.
To get the carburetor cleaned and the pressure washer working perfectly, here is our guide:
Start by removing the spark plug cap and switch off its fuel valve.
Find and gain access to the carburetor. In most cases, you might have to take off the intake setup, air filter box and the throttle cover to access the carburetor.
Locate the gas line that runs between the carburetor and the fuel tank. Disconnect your tube from a carburetor nipple in order to empty all the remaining gas. In case the tank has the new gas, you can easily clamp off your fuel line with the pliers before removing the tube. In both cases, place a towel or a bowl at the bottom in order to catch drips. You can use a WD-40 to easily facilitate easy removal of the rubber tubes.
Utilizing a nut driver or socket, take off the carburetor from your engine by unbolting the two nuts which connect the carburetor to the engine. Afterward, detach the throttle cable from a carburetor connection.
Remove the remaining gas from your carburetor into a towel or a container. Check whether the carburetor is corroded or dirty. In case it is corroded, then you ought to get a new one. On the other hand, if it is dirty, you can proceed with further cleaning processes.
Detach the carburetor. Take off the carb bowl by unbolting the nuts at the bottom. Ultimately this exposes the float. Remove the pin which connects the float to a metal body. Afterward, take off a needle valve. Always consider the material that was used to make the tip of the needle used to make the valve. In case it is made of rubber, this means you should not use the carb cleaner. Also, remove the rubber gasket attached to the rim where the carb bowls mouth closes into the body.
Spray the carburetor cleaner on the crannies and nooks of the metal components where you get gummy residues or crystals. In case the material in the metal part or bowl is liquid in nature, then you can wipe it clean. Always remember to avoid using the carb cleaner on the rubber components! Closely check the main and also the idle jets to ensure all the passages are completely clear. Technically, a small wire brush can be very helpful in this regard.
Also, you could soak the metal components in the carburetor cleaner and let it rest for about an hour.
At this point, you can rinse the parts and use compressed air to dry them.
When it comes to the gaskets and floats, thoroughly wash with water and soap and let it dry. In case there are torn or warped gaskets, you can opt to replace them with newer ones.
Re-install the carb components in their initial locations–The carb bowl, gaskets, pin, floater, and the needle valve.
Reconnect your carburetor to the engine and put everything else in place in their main positions.
There goes your detailed guiding tool on how to clean carburetor on the pressure washer. This will save you lots of trips to the repair technician and some money too. Always remember to empty the fuel tank each time you complete your pressure washing works to avoid the buildup of the debris.