Carburetor maintenance method
1. The carburetor is a key component in the engine, and small changes may affect the performance of the vehicle. Therefore, in the process of disassembly and assembly of the carburetor, use appropriate tools and moderate force to prevent deformation of the parts. The disassembled parts should be placed neatly in order to prevent missing or misplaced assembly.
2. Cleaning of the carburetor should be carried out at a clean site. First wipe the outer surface of the purifier, and the internal parts can be cleaned using a special carburetor cleaner or industrial gasoline. In addition to impurities, care should be taken to clean the gasoline gel on the surface of the part. The cleaned parts are blown off with compressed air. Do not wipe with cloth or paper that will produce burrs to prevent recontamination. Blocked holes prevent the hard objects such as steel wires from opening, preventing changes in the performance of the carburetor caused by changing the hole diameter, and should be washed out with gasoline or compressed air.
3. During the assembly process of the carburetor, the screw of the float chamber coupling, the carburetor and the engine coupling screw should not be tightened once. It must be tightened several times. The general tightening torque is between 12N.m and 15N.m. Otherwise, the joint surface will be deformed and air leakage or oil leakage will occur. The tightening torque of the measuring hole parts is generally between 1.5N.m and 3.0N.m. If the tightening torque is too large, the thread will be damaged, resulting in deformation of the parts and even metal chips, causing secondary pollution and affecting the performance of the carburetor.
4. In the process of cleaning the carburetor, if there is more deposit in the carburetor float chamber, it is often caused by the failure of the fuel filter. The fuel filter should be inspected at this time. If it is confirmed to be invalid, it is necessary to clean or replace the new fuel filter.
5. If the motorcycle is not used for a long time, the fuel in the carburetor float should be exhausted to prevent the condensation of the gasoline colloid and cause the carburetor to malfunction. In addition, it is important to emphasize that since the position of the idle adjusting screw has an important influence on the performance of the motorcycle exhaust, idle speed, transition, fuel consumption, etc., it is generally prohibited to rotate the idle air adjusting screw during the cleaning of the carburetor. If you need to disassemble the idle air adjustment screw, first screw the adjustment screw to the end, remember to screw in the number of turns (accurate to 1/8 turn), and return to the original number of turns during assembly.