Four cylinder motorcycle burning engine oil master comes

There are many reasons for the instability of the idle speed, such as which cylinder does not work due to poor conductivity of the sub-cylinder line, the life of the spark plug is near, and the leakage of the vacuum tube will also lead to unstable idling, or the filter screen and gasoline filter of the gasoline pump are too dirty, resulting in poor filtration performance of the oil. Either the fuel injector of which cylinder is not injecting oil...

Burning engine oil generally emits black smoke, you can see if there is black powder in the shape of ash at the tail port of the exhaust. Generally, the oil is burned because the valve oil seal is aging and not sealing, resulting in the oil entering the cylinder block of the piston.

If there is no such phenomenon, it may be an oil leak, so carefully observe the location where the parking is located, and there is no oil leakage. If not, the oil of each oil circuit of the engine oil has not aged, and the oil leakage of the oil aging is very slow.

Specifically, you can troubleshoot the fault, or it is recommended to go to the repair shop to take a look.

First, burn the engine oil first to determine the cause, and then consider how to solve it.

1. Due to the aging of the valve oil seal and the lack of tight sealing caused by the loss of elasticity of the rubber, the engine oil penetrates into the combustion chamber for combustion, thus being consumed. The phenomenon is that the first motor in the morning hits the car, there is a puff of blue smoke, and the car disappears quickly after the car is hot.

2. Due to the wear of the cylinder barrel or the insufficient tension of the piston ring and the counterpart of the piston ring, the phenomenon of blue smoke comes out when the cold car or the hot car is above 3000 rpm, and the amount of blue smoke depends on the degree of wear.

3. It is recommended to check and repair, not necessarily overhaul, if the wear of the cylinder liner is not serious, only replace the piston ring and valve seal.

Second, the idle instability is not directly related to the burning of engine oil, the main thing is to check the carburetor, in addition to test whether the pressure of the 4 cylinders is uniform and whether the spark plug and ignition coil of the cylinder line are leaking!

3. If there is white smoke, it is recommended to see if it is the cylinder gasket and check whether the oil has entered the cooling system!

Motorcycle burns engine oil, which is also known as string oil.

The main reason for this is the increased gap between the piston ring and the cylinder. When the engine is working, the gap between the piston ring and the cylinder increases, which enters the cylinder combustion chamber. Another reason is also very important, any one of the three problems, such as valves, valve guides, and valve seals, will also cause the engine to burn oil.

At the time of maintenance, replace the parts according to the actual situation.

Maintenance plan: 1. Replace the piston ring and valve oil seal (when replacing the piston ring, be sure to pay attention to the opening of the piston ring to avoid oil stringing again caused by the same hole).

2. Further check the valve. If you are not sure if you can solve the problem, simply replace it with the valve. If it is not repaired, it will affect the power performance of the engine, because part of it is not involved in combustion in the cylinder.

Didn't play its role. As a result, the power performance of the engine will be significantly reduced.

The engine oil itself has a certain amount of consumption, and excessive consumption is the problem of burning engine oil. There are many factors that affect the burning of engine oil, such as: fuel quality, driving conditions, driving habits, maintenance habits, etc., the above reasons will aggravate the oil consumption and lead to the burning of engine oil, making the vehicle appear:

1. Carbon deposition occurs in the combustion chamber, which makes the gas ring of the piston ring stuck, and the sealing is poor.

2. Oil sludge is generated in the lubrication system, and the oil sludge blocks the oil return hole of the oil ring and weakens the oil scraping performance.

3. Wear occurs between the piston and the cylinder wall.

4. The valve seal is corroded and aging, and the sealing performance fails.

In addition, cars now have crankcase ventilation systems (exhaust valves), which can also exacerbate oil consumption if there is a problem.

Motorcycle engine - what to do if you burn engine oil - the master teaches you to fix it like this!