The sound of the motorcycle is bad, the accelerator is turned off, and the exhaust pipe emits white

Whether the intake pipe is leaking, whether the valve clearance is too small, whether the spark plug is bad, etc., whether the air filter is blocked and the mixing ratio is too thick, and it is necessary to hear it to judge, and then it will be heated and evaporated, and water vapor (white smoke) will be discharged, and whether the mixing ratio is improper. There are many possible reasons for the throttle to stall, and you can check whether the idle speed is low. There are more possible reasons for bad sound, or go to repair the motorcycle's exhaust pipe white smoke may be water in the gasoline, but a little white smoke in the exhaust pipe of a four-stroke car is also a relatively normal phenomenon, gasoline will produce water after combustion, and the hot gas will also produce water when cooled in the exhaust pipe, whether the carburetor is blocked.

If it's a four-stroke machine:Burning engine oil emits blue smoke, but there is also a situation, that is, because the cylinder pressure of the machine cylinder is too low to start, in order to increase the cylinder sealing degree and improve the cylinder pressure in the gasoline tank added too much oil, in this case white smoke is often emitted.

If it's a two-stroke machine:White smoke from burning engine oil, and then there is damage to the crankshaft oil seal, so that the gear oil is sucked into the crankcase and added to the combustion, and a large amount of white smoke will also be emitted, accompanied by a smell of gear oil.

1. When the exhaust pipe emits blue smoke, first check whether the oil level is too high, because the oil level is too high and easy to cause the oil to go up. When checking the oil level, do not check the engine just after it stops, and check it again after 10 minutes of shutdown.

2. If the oil level is too high, the excess oil should be released in time. If the oil level is normal, for engines that have been used for a long time, check the possibility of increasing the gap due to the compression pressure of the cylinder and the wear of the piston, piston ring and cylinder, and the increase in the gap will cause the oil to go up.

3. If the above situation occurs, the piston ring should be cleaned or replaced. When the wear of the cylinder barrel is serious and the gap between the piston and the cylinder barrel exceeds the specified value, the cylinder is bored and the piston is replaced. For engines that have just undergone an overhaul or have had their piston rings replaced, it is common for the oil to be channeled due to the wrong filling of the inner and outer cuts (or chamfered corners) of the piston rings.

If this happens, the piston ring should be reinstalled.

4. Black smoke from the exhaust pipe to check the concentration of the mixture. After the symptoms of malfunction, first check the carburetor damper. When the engine is working normally, whether there is a phenomenon that the X longitudinal mechanism is stuck or malfunctioning and cannot be closed or opened, if so, it should be repaired or replaced.

The effect of installing an exhaust muffler on the exhaust pipe is as follows:

The motorcycle exhaust muffler can exhaust the exhaust gas when the engine is running, reduce the noise and temperature of the exhaust gas, and eliminate the flame and spark in the exhaust gas.

It can improve the exhaust efficiency, increase the engine power, if the carbon deposit is formed during the exhaust, the cross-sectional area of the exhaust gas channel will become smaller, causing the difficulty of exhausting, and the vehicle power will decrease, therefore, the carbon deposit in the exhaust muffler should be removed according to the regulations.

There are two types of motorcycle exhaust mufflers: box type and barrel type. The former has a good effect, but it is not easy to remove carbon deposits, and is more used in mopeds, such as Jialing CJ50 Yu moped and Xingfu XF50 Yu moped, etc., the latter not only has a good sound reduction effect, but also is easy to remove carbon deposits.

The above content reference: Encyclopedia - exhaust pipe.

When the motorcycle is driving, there is a sudden failure, the throttle cannot be added, and the exhaust pipe emits black smoke, which is likely to be in the carburetor, and the main volume hole is loose.

Hello; There are a few points that you check one by one, 1Look at the timing right, 2See if the valve is leaking. 3.Clean the carburetor conditioning mixer.

The motorcycle throttle can't be added, and the exhaust pipe emits black smoke! What causes this situation?

Well, now that you can't get it, you just go and fix it, it's so annoying, you have to go to the store to buy the things you go, and you don't take the things. I feel like it's good to go back and fix it.

The mixture ratio is too strong! See if your filter is clogged?

White smoke from cars is common in winter, as the white smoke we see is basically water vapor. There are two scenarios here:

1. Normal situation. The water vapor produced after gasoline combustion is normally discharged through the exhaust pipe, and due to the relatively low ambient temperature, the water vapor will condense and converge into small water droplets, which will change into water vapor that can be seen by the naked eye.

2. There is a fault. As part of the coolant enters the cylinder, it will appear as water vapor as the exhaust gas is discharged due to the high temperature.

Summary. There are the following reasons:

1. If the mixture is too thick, if it is a plunger carburetor (110cc engines are mostly ordinary plunger carburetors), screw the mixture screw to the end and then withdraw it for a circle and a half.

2. If the carburetor leaks oil, it may also be that the oil level of the float chamber is too high, and it will also cause the mixture to be too thick, so the carburetor should be disassembled and carefully cleaned and adjusted.

3. Check that the damper cannot be reset, and the mixture will be too thick such as black smoke and cannon when the hot car is driving.

4. Whether the air filter is blocked or soaked by gasoline and engine oil, and the air filter is not breathable, which will cause the mixture to be too thick.

Tip: Go to a repair shop to check the repair.

The sound of the motorcycle ignition has changed, and there is no exhaust and black smoke.

Hello; I am your automotive consultant, a special guest teacher, and the cumulative service has exceeded 10,000 people.

I've seen your problem, I'm sorting out the material for you, it will take a little time to type, please wait. 

There are the following reasons: 1. The mixture is too thick, if it is a plunger carburetor (110cc engines are mostly ordinary plunger carburetors), screw the mixture screws to the end and then withdraw one and a half turns. 2. If the carburetor leaks oil, it may also be that the oil level of the float chamber is too high, and it will also cause the mixture to be too thick, so the carburetor should be disassembled and carefully cleaned and adjusted.

3. Check that the damper cannot be reset, and the mixture will be too thick such as black smoke and cannon when the hot car is driving. 4. Whether the air filter is blocked or soaked by gasoline and engine oil, and the air filter is not breathable, which will cause the mixture to be too thick. Recommendations:

Go to the repair shop to check the repairs.

Is there anything else you would like to consult? If not, please give me a thumbs up. You can also follow me. If you have anything to consult in the future, you can feel free to consult me. Have a great day, thank you.

The motorcycle does not catch fire, but there is a sound, the sound is not right, and the exhaust also emits black smoke.

Follow the preceding points to troubleshoot. Normal is caused by the above reasons.

The repairer said that there was a problem with the engine.

It is recommended that the above points need to be excluded. There will be no problems with a normal engine. If there is indeed a problem, it is caused by the clutch of the engine burning out.

Can that be fixed? Probably how much.

There is maintenance, ** normal is about 100 150.

Let's just ask a few questions about the above.

If you climb a hill, you won't feel very unmotivated?

If you feel very unmotivated, it is likely that the clutch is worn.

It's always been the first gear, the second gear throttle is also big, when I stepped on the neutral gear when I turned, I hit the accelerator, picked the second gear, and walked directly, and when I walked, I couldn't fire and emit black smoke.

That is most likely the clutch, and it is recommended to replace the clutch.

The exhaust pipe of the motorcycle emits white smoke and does not catch fireIt may be caused by flooding of the cylinder or too thick mixing ratio, water ingress in the combustion chamber of the cylinder, poor gasoline oil quality or water in the oil, poor valve closing, improper carburetor debugging or other faultsIf it's a water-cooled engine,It may also be caused by damage to the cylinder gasket or water seal. In this case, it is necessary to check the parts involved in these possibilities separately, find the specific cause of the failure, and then repair them according to the situation.

Check whether the gasoline in the fuel tank is of normal quality and whether the gasoline contains waterThis can happen if the gasoline oil is not of good quality or if there is water in the oil. White smoke from a motorcycle's exhaust pipe is not always faulty, and sometimes it is a relatively normal phenomenon. Because gasoline will produce a small amount of water after combustion, and the exhaust gas from the engine after combustion will also condense some water in the exhaust pipe when it is coldAfter these are heated, water vapor will be formed, that is, white smoke will be discharged, and some exhaust pipes will drip water, so white smoke itself is not necessarily a problem, but it may also be a normal phenomenon.

Other aspects can also be checkedWhether the valve clearance is too small, or the valve is caused by carbon deposit, wear, ablation and other reasons, especially the exhaust valve is not closed tightly, whether the ignition time is wrong, and whether the spark plug and high voltage are normal. Check whether there is a failure of the flooded cylinder, or the mixture is too thick due to various reasonsSometimes the ignition cannot be started for a long time, which may also cause this situation. Check whether there are any problems with the mixing ratio, oil level, damper, etc. of the carburetor, and whether there are other faults in the carburetorWhether there is water in the engine.

In the case of a water-cooled engine, check the cylinder head gasket and water seal for coolant leakage.

There's nothing wrong with changing the slip plug rings and repairing the valves. The price is about 40 yuan.

Take a look at the spark plug and the circuit system, and then check if the compression ratio of the car is normal. Finally, check whether the piston rings and valves of the cylinder block are normal.

Do you pay attention to see if it is white smoke or water vapor? If it's moisture, it's fine. Illustrate the engine steel of steel.

When you set off the gun, you have to check the circuit.

That's water vapour ... Don't worry. The engine is good.

It is also possible that the mixture is too thin, so wash it or make it a little thicker.

The water in the muffler evaporates at the high temperature of the exhaust pipe, and white smoke is normal, and if it is ethanol gasoline, it will produce more water. You can see that the exhaust gas of the car in winter is a white smoke, that is, water vapor and heat, our breath is only more than 30 degrees, and you can see the hot gas, not to mention the high temperature generated by the vehicle fire, and the more fully burned, the more water will be produced by the burning car. The reason for the exhaust pipe discharge may be that there is water in the oil (in winter, the gasoline tank may condense in the internal due to hot and cold changes), the starting time is too long, inhaling too much fuel or the spark plug fire is weak, and the mixture of the carburetor can also be adjusted slightly thicker in winter, and it should be fully warmed up after starting before driving, as long as this phenomenon is not too frequent, it will be normal after starting, and it will be fine, don't worry.

It may be that there is too much oil in, and it is not fully burned and discharged, if there is no such situation in the normal gas pedal, it is nothing if you usually ride without black smoke, it is not necessarily a fault, this way of slamming the throttle is incorrect, that is, it is a waste of gasoline, and it is not good for the engine. If there is usually black smoke, you can check whether the air filter is blocked, whether the mixing ratio of the carburetor is too thick, whether the oil level is too high, whether the damper is used improperly, whether the exhaust valve is ruined, whether the gap is too small or not closed tightly, etc.

Motorcycle Introduction:

Motorcycles, driven by gasoline engines, are two-wheeled or three-wheeled vehicles that are steered by handlebars, are lightweight, flexible, and fast, and are widely used for patrolling, passenger and freight transportation, etc., and are also used as sports equipment. In terms of general direction, motorcycles are divided into street bikes, road racing motorcycles, off-road motorcycles, cruisers, station wagons, etc.

The modern motorcycle industry has introduced a large number of advanced technologies. For example, the FLHRC-1 motorcycle launched by Harley-Davidson in 1998 adopts the world's top automobile engine technology - fuel injection device, which not only improves the power, but also is more suitable for the environmental protection needs of contemporary society, and has become the forerunner of motorcycles in the 21st century.

The application of high-tech such as optical communication electronic control system, radar ranging automatic control system, electronic map guidance system, and acoustic wave electric object racket silencing system in some concept motorcycles has made modern motorcycles more perfect and more shocking.