A biker's dream is to have a super cool motorcycle of his or her own.


However, after owning your motorcycle, you will inevitably face the problem of maintenance and even troubleshooting.


Let's learn about the common causes of motorcycle problems and save for a rainy day.


Troubleshooting


1. Blue smoke from the exhaust pipe


During engine operation, light blue smoke is often visible at the tail end of the exhaust muffler, and the phenomenon of excessive oil consumption.


The reason for the failure may be that the oil level is too high; the cylinder compression pressure is lower than the specified value.


The clearance between the piston, piston, and cylinder barrel increases.


2. Black smoke from the exhaust pipe


When the engine works, the exhaust pipe black smoke, and can smell the pungent smell of gasoline, acceleration is more obvious.


The cause of the failure may be too rich a mixture, poor spark plug work, or ignition too late.


3. White smoke from the exhaust pipe


When the engine works, the exhaust pipe white smoke.


The cause of the fault may be the fuel contains water; cylinder or muffler in the water.


Troubleshooting


1. Blue smoke from the exhaust pipe.


First of all, check whether the oil level is too high because the oil level is too high and easy to cause the oil to run up.


When checking the oil level, do not check it just after the engine stops, check it after 10 minutes of stopping.


If the oil level is too high, the excess oil should be drained in time.


If the oil level is normal, for longer engines, check the cylinder compression pressure and piston, piston ring, and cylinder wear and tear and the possibility of increased clearance.


After inspection, if the cylinder pressure is lower than the specified value, should further check whether the piston has carbon seized, worn too much or the elasticity disappeared.


If the above situation, the piston ring should be cleaned or replaced.


For the cylinder barrel wear serious, piston and barrel clearance exceeds the specified value, do boring, replace the piston, and another disposal.


2. Black smoke from the exhaust pipe


Check the concentration of the gas mixture.


After the symptoms of failure, first, check the carburetor damper.


In the normal operation of the engine, whether there is X longitudinal mechanism stuck, fails, and can not close, open the phenomenon, if there should be repaired or replaced.


Check whether the oil level in the float chamber is too high; or whether the float is broken and cannot float.


Whether the main volume hole needle valve is open too much; whether the air filter is blocked, etc.


Engine exhaust line in the process of black smoke can be, if the pieces have a "burst" sound and "gun" sound, it means that the ignition is too late. If the above situation is correct in time.


3. White smoke from the exhaust pipe


White smoke from the engine exhaust pipe is mostly caused by the fuel containing water in the cylinder and water in the muffler.


If there has been a white smoke phenomenon, indicating that the fuel is not qualified, should be replaced with good-quality fuel.


If only white smoke when starting, disappear after the normal operation, this problem is not a concern.


4. Lack of power


Such cases are mostly piston ring aging seal is not good, the valve is not closed or carburetor blockage, should replace the piston ring. Valve and cleaning carburetor.