Bend the tab that contacts with the "needle". But DON'T put pressure on the needle when you do so. Carburetor rebuild instructions that come with the carb rebuild kit will tell you how to adjust everything and give optimum float level settings.
To adjust the carburetor float on a 1990 Isuzu pickup, first, remove the carburetor from the engine and detach the float bowl. Check the float height by inverting the carburetor and measuring the distance from the float to the gasket surface; it should typically be around 14-16 mm. If adjustment is needed, bend the float arm gently until the correct height is achieved. Reassemble the carburetor and reinstall it on the engine, ensuring all connections are secure.
To adjust the float on a 5 hp Tecumseh engine, first, remove the carburetor and then take off the float bowl. Check the float for proper movement and inspect the needle valve for wear. Adjust the float height by gently bending the float arm so it sits at the correct level when closed, typically around 1/4 inch below the carburetor body when inverted. Reassemble the carburetor and test the engine to ensure proper fuel delivery.
The carburetor needs rebuilding including a new float, needle and seat, assuming it has a carburetor.
The carburetor will have to be taken apart to install a new fuel float. After the top is off, the float sits in the bowl resting on a rod. Pick it straight up, remove the needle and install it on the new float. Put the carburetor back together with new gaskets.
Most likely, Your float is stuck in the carburetor. If it is stuck open gas will continue to flow into the carburetor bowl, then it will flow into the crank case and cause your oil level to rise. You need to take off your carburetor and adjust the float.
It is in the float chamber of the carburetor.
Could be,Foreign material (dirt, rust, etc) caught in the needle and seat,Bad float,Float is out of adjustment,
The float in your carburetor might be stuck, or your fuel pump (or line ) might have a piece of trash in it.
The float is located inside the carburetor.
Someone must have converted that vehicle from fuel injection back to a carburetor. Carburetors were phased out during the 1980's. If in fact the vehicle does have a carburetor you can purchase a rebuild kit for that carb. The carb has a part number stamped on it so a good auto parts store can use that number and get you the correct rebuild kit. The kit comes with instructions. Recommend purchasing a new fuel filter and float along with that kit.
To replace the float needle and seat on a Tecumseh carburetor, first, remove the carburetor from the engine and disassemble it by taking off the float chamber. Carefully detach the float by removing the pin that holds it in place, then take out the old needle and seat. Install the new seat by pressing it into the carburetor body, then attach the new needle to the float and reassemble the carburetor, ensuring all components are properly aligned and secured before reinstalling it on the engine.
Have you checked to see if the float has a hole in it allowing fuel to weight it down? Possibly the needle valve is sticking and not the float. Could also be the float needs adjusting. You need to open the carburetor up and see what is going on.