Turn the screw clockwise until the speed drops (in this case, they are oriented by ear). Open the throttle to full, while giving out full throttle.The carburetor trimmer with the last screw is configured as follows: The left-hand screw (N) determines the general adjustment of the maximum speed, engine power, temperature and gas mileage. adjustment of the mixture at high speeds. stable operation of the engine when changing position (sharp rise or descent of the knife).not overestimated speed of the hot engine.is responsible for adjusting the engine at idle.įor proper adjustment of idling, it is typical: To adjust, turn the screw a quarter of a turn necessarily counterclockwise.īottom (T). To do this, slowly turn the screw (L) to the right and left. adjustment of the fuel mixture for low revs. How to adjust a carburetor on a brush cutterīefore adjustment, carefully clean the filters according to the maintenance in the instructions.ĭo-it-yourself carburetor further tuning of the brushcutter is done by adjusting screws. Simply put, adjusting the carburetor on the brushcutter is creating the optimal fuel mixture due to the correct air supply. The wider the flap is open, the greater the fuel consumption and power. The level of air density in the system depends on the area of the open air damper. The air-fuel mixture enters the engine cylinder through the fuel pipe.As a result, an air-fuel mixture of the necessary proportion or density is formed. The acceleration of the air flow contributes to the transfer of fuel (gasoline) and its atomization.Due to the pressure drop, fuel enters through the nozzle. In the float chamber, the pressure level is neutral, and in the tube with narrowing is already low. A camera with a float adjusts the temporary volume of gasoline. Gasoline through the float chamber and nozzle tube with narrowing.The fuel supply system must be narrowed by a diffuser to increase the flow rate.The partition controls the intensity of the air flow. Air supply to the tube with an air baffle (damper).The needle valve moves into the membrane chamber. Further, the fluid moves through the inlet and outlet valves of the pump. Then it passes through the fitting in the carburetor. Video: How to Adjust a Carburetor On a Stihl Trimmerįuel is sucked into the carburetor system by a pump (its membrane). The throttle valve determines the amount of air for supply, and engine power directly depends on this. The principle of operation of the carburetor Of these, fuel is drawn in using an air stream. The diffuser is equipped with fuel channels. The oxygen (air) flow rate depends on the cross-section (passage opening) of the diffuser. It contains a diffuser (a hole with internal contours). The basis of the carburetor petrol scythes is an aluminum case. You can probably check it in a primitive way. all of these parts are subject to depressurization. The throttle body, the bundles of carburetor parts, the intake or exhaust pipe. ![]() Use rinse with acetone or the same gasoline.īlowing off carburetor parts with a blockage of compressed air is an acceptable and convenient repair practice. ![]() The carburetor starter in most cases does not function due to blockages. There may also be damage on the fuel supply pipe (during repair, check this element). With visible damage to the strainer, it is imperative to install a new one. If dirt has simply accumulated on it, washing with gasoline or blowing will help. In order to find out the cause of the breakdown, the fuel filter cover is unscrewed to remove the strainer. Strainer There are only two problems with this element: ![]() The main problems and malfunctions of the carburetor. In this process, the main thing is the correct proportion of fuel and air, for which they regulate the carburetor. In it, like any carburetors, there is a process of mixing air and fuel (gasoline) for further supply to the engine cylinders. A brush cutter carburetor is a unit in the power system.
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