What's with the engine chattering and flameout?

The most common causes of engine stall are dirty throttle, excessive carbon deposition at the fuel injection port and aging engine legs. Specifically, when the engine is turned off, the following points should be noted: 1. When the idle speed stops, first adjust the idle speed according to the actual situation. If the fault still exists after adjustment, it is necessary to check whether the throttle valve is too dirty, whether the fuel injection port has too much carbon deposit, and whether the engine foot is aging. 2. If there is no air leakage, it is necessary to remove the idle metering hole for inspection and installation test. After troubleshooting, attention should be paid to the blockage of idle metering hole and idle oil circuit. 3. For carburetor equipped with idle stop valve, it is also necessary to check whether the electromagnetic coil loop is normal. If the abnormal coil circuit causes the low fuel consumption hole to be blocked at idle speed, you can try to repair the cut-off solenoid valve. In addition, if the engine rotates unsteadily at idle speed, the exhaust pipe will make a "oblique, oblique" sound, which is usually caused by unstable idle speed. In this case, it is necessary to find the leaking place and keep the engine at a certain speed.