The annual Spring Festival motorcycle race is about to begin. The long-distance travel of the migrant workers’ motorcycles requires a balance between power and fuel economy. Today we analyze the problem of fuel consumption. Although there are many reasons for the excessive fuel consumption of motorcycles, there are many reasons. Carburetor is the root cause of fuel consumption, because most motorcycle carburetor will have oil leakage in various situations, so adjust the carburetor to make the motorcycle more fuel-efficient, let you ride the motorcycle home for the New Year.
Why is the carburetor the source of fuel consumption?
Because the power of the motorcycle engine is generated by the deflagration of the mixture during the work, the mixture is provided by the carburetor, and the generation of the mixture is atomized by the vacuum suction generated by the carburetor when the piston descends. Therefore, the carburetor must have a good oil supply state, which is the root of all power and fuel economy.
(1) When the carburetor malfunctions, it will cause the motorcycle power to drop and cost oil.
(2) When the carburetor idling hole or main hole is blocked, it will cause less oil supply to the carburetor, resulting in obviously insufficient engine power. In severe cases, the engine will extinguish itself.
(3) When the carburetor throttle valve is not tightly closed, it may cause difficulty in engine starting, no idle speed or unstable idle speed, insufficient power, etc. In severe cases, it may cause abnormal starting, which may be due to throttle execution. The mechanism is worn or stuck so that it is not tightly closed, so that the air entering the cylinder cannot enter from the correct way and the correct passage, resulting in poor atomization of the mixture, which reduces the power and increases the actual fuel consumption.
(4) If the oil level is too high, the mixture will be too rich, and some fuel will be wasted. This obvious oil spill indicates that there is still a phenomenon of running and leaking. Can it be oil-free? The reason why the oil level in the float chamber is too high is that the carburetor is carefully inspected and found that the carburetor body is not flattened at the lower mouth of the float needle valve, the float is not smooth, and the needle is stuck, causing the needle valve to be closed. The position continues to rise and the oil spills. This is a disaster caused by unqualified products, and the quality of the products is worrying.
(5) When it is found that the carburetor throttle is not tightly closed, check whether the shaft is stuck, whether there is any obstruction, whether there is wear, adjust the actual situation, replace it if necessary, and disassemble the carburetor for thorough cleaning.
Solve the oil leakage problem of motorcycle carburetor and make motorcycle more fuel efficient
Many Moyou found that the fuel consumption has not been seriously dealt with, and the carburetor leaks oil. Some motorcycle carburetors will leak oil in various situations. If the external oil leaks, the direct performance is dirty, if internal Oil spills, although there is no change in appearance, but the car will have many inexplicable faults.
The carburetor oil inlet system is a dynamic balance system. The float in the float chamber is driven by the buoyancy of the gasoline, and the needle valve is continuously adjusted to adjust the gap between the needle valve and the valve seat to control the oil intake, so that the motorcycle can be used in various working conditions. The oil level in the lower float is kept dynamic and stable, and the carburetor is leaking. This is caused by the damage of the above balance system. The carburetor oil leakage not only increases fuel consumption, affects the performance of the whole vehicle, but more importantly, the safety of the vehicle. Causes greater harm and needs to be eliminated in time.
Why is the carburetor leaking oil, how to eliminate it?
(1) The float is stuck and cannot close the needle valve, causing oil leakage.
The reason is that the long-term soaking deformation of the float by the gasoline and the contact with the wall of the float chamber may also be caused by the long-term friction gap between the float pin and the body float pin hole, which causes the float to contact the float chamber wall.
Remedy: If the float is deformed, replace the float. If the outer diameter of the float pin becomes smaller, replace the float pin. If the pin hole of the body float becomes worn, the carburetor can only be replaced. Otherwise, the repairman will usually Give you direct change to the assembly.
(2) The main oil needle is stuck by foreign matter, causing the oil level to continuously rise and leak oil.
The reason is that the needle valve and the valve seat are controlled to control the oil input amount, and the sealing property is strict, and the contact surface of the two faces is high. If foreign matter adheres to the contact surface between the needle valve and the valve seat, the needle valve and the valve seat will not be tightly sealed, and oil leakage will occur. Foreign matter mainly refers to impurities and condensed gum in gasoline, so to avoid such failures, owners should pay attention to regularly clean the fuel filter and use good quality gasoline.
Remedy: Decompose the carburetor, clean the float chamber and the main oil needle and its valve.
(3) The float is damaged or immersed in gasoline, losing buoyancy and causing oil leakage
The reason is that if the float is damaged or immersed in gasoline, the weight and buoyancy of the float will change, causing the oil surface to rise and causing oil leakage. The elimination method is to replace the float.
(4) The needle valve wear is not tight and the loophole is caused.
The reason is that the needle valve is worn during the long-term use of the impurities contained in the gasoline and the contact with the valve seat, and the two sides of the float float are unbalanced, which causes the needle valve to be laterally stressed and worn.
Remedy: The replacement method is to replace the needle valve. At the same time, the user should pay attention to regularly clean the fuel filter and use good quality gasoline, replace the needle valve, and adjust the float float at both ends on the same level. However, this situation now occurs. The repairman directly gave you the entire carburetor.
Suggestion: Mo friends can trim the lower mouth of the carburetor float needle valve, so that it is very flexible until the float falls. The float needle valve can be closed, and the carburetor various holes and oil passages are cleaned and carefully reassembled. The oiler, after running for a while, must use genuine parts when repairing the car. Don't try to use some miscellaneous products cheaply. It seems to save money, but the loss in other places is far greater than the one saved.
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