There are many reasons, let me talk about a few of the most common ones first.
White smoke and flameout can be caused by water in the fuel tank .
White smoke and incorrect engine noise or the power is low, the fuel supply time is late. That is, if the ignition time is late, the pusher may be broken, and sometimes flameout may occur.
White smoke may be emitted, or the oil head may be stuck
1. Exhaust Black smoke coming from the pipe:
This means that the engine mixture is too rich, resulting in insufficient combustion. When the air filter is too dirty, the spark plug is defective, the ignition coil is defective, etc., the engine will emit black smoke.
2. White smoke coming from the exhaust pipe:
This means that the injector has poor atomization or the oil is leakinge, which prevents some of the gasoline from burning; essence ; there is a problem with the cylinder head and cylinder liner. There are cracks invisible to the naked eye, the cylinder seal is damaged, and water enters the cylinder. The machine temperature is too low; It can be solved by the following methods: cleaning or replacing the injector, adjusting the injection pressure; eliminate moisture in the fuel tank and oil system; do not buy cheap and substandard oil; cylinder head.
3. Blue smoke comes from the exhaust pipe:
This means that engine oil enters the combustion chamber to participate in the combustion of the piston ring and cylinder liner. are not completely broken in and engine oil is entering through the gap; the piston ring is stuck in the groove and the piston ring cone is installed upside down and the oil scraping effect is lost manifexcessive era; worn out and oil flows into the combustion chamber from the opening space; the oil level in the oil pan is too high; the valve and guide are worn and the gap is too large. It can be solved by the following methods: new cars or overhauled locomotives must operate in the engine according to regulations so that all parts can mesh normally; clearly read the assembly marks and correctly install the piston rings by qualified or enlarged piston rings; sizes; check the oil base. The reason for increasing the hull oil level is to drain the excess oil from the oil pan, reduce the oil in the filter oil pan, and replace the valve guide;