Normal Maintenance of Chainsaw Carburetors General Carburetor Problem Solving
Normal maintenance of carburetors is actually to maintain carburetors The cleanliness of the carburetor when it leaves the factory is controlled by professional carburetor manufacturers as a key indicator for the quality assessment of carburetors. Various advanced equipment and processes are used to strictly control each link of production. Therefore, in order to ensure the normal use of the carburetor, we must pay attention to the normal maintenance of the carburetor: clean the carburetor regularly, keep the oil passages and air passages of the carburetor clean, and the small apertures are unobstructed. This is also very important to prolong the service life of the carburetor. Many carburetor performance failures can be solved by regularly cleaning the carburetor.
Normal maintenance of chainsaw carburetors and solutions to general carburetor problems
1. The carburetor is a key component in the engine. Any changes may affect vehicle performance. Therefore, during the disassembly and assembly process of the carburetor, appropriate tools should be used and the force should be moderate to prevent deformation of the parts. The disassembled parts should be neatly arranged in order to prevent missing or wrong assembly during assembly.
2. The cleaning of the carburetor should be carried out in a clean place. First wipe the outer surface of the carburetor, and use the special cleaning agent for carburetor or industrial gasoline to clean the internal parts. In addition to impurities, pay attention to cleaning the gasoline gum on the surface of the parts. The cleaned parts should be blown clean with compressed air, and cannot be wiped with cloth or paper that will produce burrs to prevent re-contamination. Blocked holes should not be opened by hard objects such as steel wires to prevent changes in the performance of the carburetor caused by changing the hole diameter. Gasoline or compressed air should be used to clean and flush out.
3. During the assembly process of the carburetor, the connecting screw of the float chamber, the connecting screw of the carburetor and the engine should not be tightened at one time, but must be tightened several times. Generally, the tightening torque is 12N.m～15N .m between. Otherwise, the joint surface will be deformed, and air leakage or oil leakage will occur. The tightening torque of measuring hole parts is generally between 1.5Nm and 3.0Nm. Excessive tightening torque will damage the thread, cause deformation of the parts, and even produce metal chips, causing secondary pollution and affecting the performance of the carburetor.
4. In the process of cleaning the carburetor, if there are many deposits in the float chamber of the carburetor, it is often caused by the failure of the gasoline filter. At this time, the gasoline filter should be checked, and if it is confirmed that it is invalid, it needs to be cleaned or replaced with a new gasoline filter.
5. If the motorcycle is not used for a long time, it is necessary to discharge the fuel in the carburetor float chamber to prevent the gasoline from colloidal deposition and condensation, which may cause the carburetor to malfunction. In addition, it should be emphasized that because the position of the idle speed adjustment screw has an important impact on the performance of motorcycle emissions, idle speed, transition, fuel consumption, etc., it is generally forbidden to rotate the idle speed air adjustment screw when cleaning the carburetor. If it is necessary to remove the idle air adjusting screw, screw the adjusting screw to the end first, remember the number of turns (accurate to 1/8 turn), and return according to the original number of turns during assembly.
