High score for advice Is the uneven idle speed of the motorcycle a carburetor a problem?

First, it is difficult to fight and difficult to catch fire, which means that the battery voltage is not enough;

Second, because the car is eight years old, it is not excluded that the oil pipe wall is aging and narrow, so it will be bumpy and bumpy when riding;

Third, riding up and running does not rule out the problem of eccentric wear and aging of the clutch.

By the way, due to the age of the car, this problem will also occur if the atomization of the carburetor is not good, and it is more difficult!!

To sum up, your car is caused by the age of the car and the aging of the fuel supply system.

Suggestion: If you have the money, get a new one!

1.If it is a carburetor before changing the cylinder, there is no problem, there is no reason to have a problem after changing.

2.Generally, the car has been driving for eight years, and it is not easy to start and idle unstable, mainly due to the difficulty of starting caused by magneto failure; The reed valve is faulty and causes an air leak, resulting in unstable idling.

3.Aging oilers generally have high fuel consumption and oil leakage failures, and frequently used cars rarely have unstable idling failures.

Therefore, I personally suggest that the reed valve with unstable idle speed and the magnetizer assembly with difficulty in starting will be good.

1 The failure to ignite cannot be ruled out as not the carburetor problem, but from the situation you described, it should be caused by the piston (ring) clearance.

There is a small chance that there is a problem with the carburetor that is swaying, and I suspect it is caused by too little piston clearance or uneven travel throughout. Are cylinders and pistons authentic?

2 If it is a carburetor that is uneven, it should be difficult to repair, and it is best to replace it with a new one.

It should be a valve leak, the valve can be replaced, the carburetor is also related, the old cars have such problems, it is best to change to a new car, you estimate that half of the new car is here after the car is repaired.

The car is old and pulled. It's like that. It's better to add some money for a new car. It is related to a carburetor.

Try retuning the carburetor, and the spark plug is normal?

The reed valve is not closed tightly, and it needs to be checked and adjusted.

Change the carburetor assembly! Change the barrel! ok！

1.If the oil level of the motorcycle carburetor is too low, it may cause the failure of not being able to idle or idle unstable, and the loose throttle is easy to stall, but this possibility is not very large. Carburetor motorcycles have no idle speed and loose throttle is easy to stall, most of them are caused by idle speed adjustment too low, improper mixture adjustment, carburetor blockage, spark plug or gasoline oil quality is not good, valve or intake pipe leakage, etc., due to the low oil level of the carburetor caused by the can not idle and loose throttle is easy to stall is relatively less.

2.The electric start of the motorcycle is normal, but the idle speed is unstable and can not be sustained, generally has nothing to do with the installation of gasoline filters, and the relationship with the oil level of the carburetor is not large, as listed in the first article, most of them are related to the carburetor blockage or improper debugging, spark plugs, high voltage or gasoline is poor, and the valve or intake pipe and other slight leakage are related.

3.As mentioned in the previous two articles, it should focus on checking whether the valve and intake pipe and other hoses related to the carburetor, engine, secondary intake system, gasoline pump, etc. are leaking, whether the spark plug is bad or whether the high-voltage electricity is faulty and weak fire, whether the gasoline oil quality is not good, check and clean the carburetor, and check whether the mixing ratio of the carburetor, damper, etc. These are more likely to cause no idle and loose throttle stalling.

Matter.

Motorcycle idle normal can not add oil is the oil circuit, the machine is broken, to consider the problem of oil circuit and carburetor, carburetor accelerator pump, fuel tank negative pressure switch, intake manifold whether the leakage oil circuit carburetor, fuel tank switch, gasoline filter, and is the engine cylinder, plug, ring, valve and other aging causes.

Intake and exhaust, air filter blockage, exhaust pipe blockage, intake valve leakage, in compression and power stroke, high-pressure mixture rushing into the inlet duct is basically eliminated, the gas distribution timing is inaccurate, when the exhaust top dead center, the intake valve is opened in advance, and the exhaust gas of high temperature and high pressure rushes into the intake channel.

Focus on the oil supply part

Check the vent of the fuel tank first, there is no problem, it is unblocked, and there is no problem that the negative pressure in the fuel tank cannot be oiled.

Then check the oil supply pipelines and see if they are blocked. After that, I focused on the carburetor, and after the ignition explosion caused by the dilution of the mixture, the thrust of the gas acting on the live kill was insufficient.

Stroke engine crankcase seal is poor stroke engine, the cause of the yellow valve, the damage of the yellow valve, and the reverse installation of the rotary valve causes the carburetor to be backsprayed.

After the carburetor of the motorcycle is replaced, the idle speed is unstableIt can be a new carburetor problem or something else, which needs to be checked before it can be determined. Even if it is a newly replaced carburetor, there may be quality problems, blockage, improper installation and debugging, etc., and there may also be failuresThere may also be problems in other aspects, and it just so happened that after changing the carburetor, the fight was known to be faulty.

First of all, check and confirm whether there is a problem with the quality of the new carburetor itself, whether the model is appropriate, and whether there is improper installation and commissioning.

Check to confirm whether the new carburetor is qualified**, whether the model fiber lead is suitable for the motorcycle, and the new carburetor can not completely rule out that there will be blockage, so you need to carefully clean the carburetor, dredge the various nozzles and holes in the carburetor, and check whether there are problems with the mixing ratio, oil level, oil needle, damper, etc. of the carburetor. Check whether the gasoline oil quality is not good, whether the oil supply is not smooth, whether there is air leakage at both ends of the carburetor, etc., the carburetor is the most common situation that causes unstable idling.

Check for problems with valve clearance and closing, valve timing, spark plugs, and high voltage.

Check whether the air filter is blocked, whether the valve clearance is too small, or the valve is not closed tightly due to wear, carbon deposit, ablation and other reasons, whether the cylinder piston and piston ring are worn out and the cylinder pressure is low, whether the ignition time and gas distribution timing are wrong, whether the spark plug is bad or the electrode clearance is not suitable, whether the high-voltage electricity is broken or the fire is weak, and whether there is a slight air leakage in the intake pipe and other hoses.

Why did you change the carburetor?

Is the oil consumption too high, or is the oil leak unrepairable, or the flammable mixture is too thick to be regulated, causing frequent damage to the spark plugs?

In the first case, exclude the scooter belt and leather Jane staring pulley working normally, the air filter is clean, the motorcycle friction plate is not slipping, the air filter is clean, and the sprocket ratio is correct, the adjustment of the mixture screw is invalid, you only need to adjust the height of the oil plane or the height of the throttle oil needle can be solved.

In the second case or in the third case, you need to replace the carburetor. After replacing the carburetor, the idle speed is unstable, which is the wrong ratio of the combustible mixture, and it can be solved by adjusting the concentration of the mixture.

Idle speed fluctuations are generally due to air leaks in the intake manifold or oil leaks in the carburetor circuit. Adjust the idle mixing ratio to the best. Then screw it in a little bit, if the idle speed can be maintained, it is a carburetor problem, if the idle speed is still high and low, it is very likely that there is an air leak at the intake manifold interface.

Check the carburetor rock tool is no problem, the idle speed can not be lowered, should check whether the contact gap of the breaker is too small, because the hair Hui Tan motive in the low-speed operation from the front collapse to the contact gap is too small will cause the contact to produce weak or intermittent sparks, so that the low-voltage current can not be effectively cut off, affecting the strength of the high-voltage spark, therefore, can not maintain the engine idle operation, at this time, the contact clearance of the breaker should be adjusted according to the regulations, until it is appropriate. Furthermore, check whether the crankcase is leaking, because the crankcase is leaking, it will inhale excess air, resulting in too high idle speed, and when checking, apply soapy water to the oil seal seal. Then rotate the crankshaft, if the soapy water is sucked into the cylinder, it means that the crankcase is leaking, then the new oil seal must be replaced, in addition, the idle measuring hole should be checked whether it is too large, if so, it should be replaced in time.

Summary. Hello, glad to answer for you.

Readjust the gas mixture screws first, and clean the carburetor if necessary, the new carburetor may also have the wrong mixing ratio or clogging. In addition, check the installation of the carburetor, the air intake pipe, and other hoses for misinsertion or slight air leaks, which can also cause unstable idle speed and slow oil return.

How can the idle speed of the motorcycle be high and low when the new carburetor is replaced?

Hello, I am glad to answer for you to readjust the ear track to readjust the mixture Luozhou Lusi, if necessary, clean the carburetor and guess the carburetor, the new carburetor may also have the wrong mixing ratio or blockage. In addition, check the installation of the carburetor, the air intake pipe, and other hoses for misinsertion or slight air leaks, which can also cause unstable idle speed and slow oil return.

New carburetor. Hello, there is also a possibility that the new carburetor is not mixing the right ratio or clogged. In addition, I check the installation of the carburetor and the intake pipe.

There are many reasons why a motorcycle stalls:

1. The air filter leaks that the gas is too dirty, resulting in abnormal gas mixture (air filter gas replacement or cleaning) 2. Spark plug carbon deposition or aging (cleaning carbon deposition or replacement).

3. Carburetor problems (replacement, cleaning).

4. The idle speed is too low (adjust the starting Yang idle screw at 1000 1500 rpm) 5. The proportion of the mixture is wrong (adjust the mixture screw).

6. Abnormal valve work (problems with crankshaft and connecting rod) when the engine is operating at low speed. 1. If it is a paper air filter, it is better to go to a repair shop.

Hello, this situation should be a problem with the petrol pump, you need to go and change a petrol pump.

If you encounter similar problems in the future, you can follow the following ideas to solve them:

1. Finding problems: often living in the world, always in these kinds of contradictions, when some contradictions are projected into consciousness, the individual only finds that he is a problem, and asks to find a way to solve it. This is the stage where the problem is discovered.

From the perspective of the stage of problem solving, this is the first stage and the premise of solving the problem.

2. Analyze the problem: In order to solve the problems found, it is necessary to clarify the nature of the problems, that is, to figure out what contradictions there are, which contradictions, and what is the relationship between them, so as to clarify what results the problems to be solved, the conditions that must be met, the relationships between them and what conditions have been met, so as to find out the important contradictions and key contradictions.

3. Put forward hypotheses: on the basis of analyzing the problem, put forward hypotheses to solve the problem, that is, the solutions that can be adopted, including what principles and specific ways and methods to take, but all these banquets and training talks are often not simple and ready-made, and there are a variety of possibilities. However, putting forward hypotheses is the critical stage of problem solving, and correct assumptions lead the problem to be solved smoothly, while incorrect and inappropriate assumptions make the solution of the problem take a detour or lead astray.

4. Verify the hypothesis: The hypothesis only proposes n possible solutions, and there is no guarantee that the problem will be solved, so the last step in problem solving is to test the hypothesis. In either case, if the test does not produce the expected result, a new hypothesis must be proposed and tested again until the correct result is obtained, and the problem is not solved.