Seven, the idle speed adjustment caused by excessive bad motorcycle

The poor transition is that when the motorcycle accelerates from the start, the oil supply of the carburetor idle oil system gradually decreases and the oil supply of the main oil system continues to increase. In order to make the oil supply connection between the idle oil system and the main oil system smooth, the transitional oil system is set up to ensure the smoothness of the starting process of the motorcycle.

The phenomenon of poor transition: when starting acceleration, the engine speed fluctuates or stalls with the opening of the throttle.

Reasons for poor transition and elimination methods are as follows:

1. The idle metering hole, idle oil circuit, main metering hole and transition hole are partially blocked

Cause: The idle metering hole, the idle oil circuit, the main metering hole, and the transition hole are partially blocked, which causes the oil supply of the relevant oil systems of the carburetor to be thin, resulting in poor transition.

Elimination method: According to the above-mentioned carburetor cleaning method can be cleaned.

2. The foam tube is blocked

Reason: The role of the carburetor foam tube is to promote the mixing of gasoline and air, and after the foam hole on the foam tube is blocked by impurities, the mixing effect of gasoline and air is reduced, and the atomization quality is decreased, resulting in poor transition.

Elimination method: According to the above-mentioned carburetor cleaning method can be cleaned.

3, the idle speed adjustment is poor

Reason: The carburetor oil supply in the transition process mainly comes from the idle oil system, if the idle speed is improperly adjusted, it will affect the transition performance.

Elimination method: Adjust according to the above-mentioned idle speed adjusting screw adjustment method.

Eight, the new car needs to run in, this is the most basic requirement!

It is recommended that you can use idle run-in. Empty car running-in. Load running-in these three methods, these three running-in methods can be worn alternately.

1, idle run-in: the car is not on the road, with idle run-in engine. Mainly running-in cylinder liner and ring, bearing bush, valve.

2, empty car running-in: no man and cargo in low speed running, each gear should be running-in, the main and auxiliary shaft gear machining is not flat.

3, load running-in: load is not overloaded under the medium and low speed running, each gear should be running-in, the main and auxiliary shaft gear machining is not flat,

Violent run-in is not advocated, because it is not suitable for domestic cars.

Nine, about how many twists

There are no two identical leaves in the world, and there are no two identical cars! Therefore, I particularly do not agree with the emphasis on clockwise (or counter-clockwise) twisting "how many turns" approach. Obviously, this is a dogmatic error.

In fact, every car's run-in, condition - and, most importantly, the driving habits of its owner - are different. Some friends prefer to enjoy the pleasure of acceleration, and naturally suggest that the mixture is stronger and the idle speed is higher, so that the acceleration is cool. However, for drivers who do not particularly pursue acceleration (such as me), I do not care much about this, I am concerned about: normal braking and stopping during the exercise (such as waiting for traffic lights) without changing gear to neutral, and will not stall - this is enough. Therefore, when we adjust the mixing ratio, we do not have to consider the problem of how many circles, as long as we see whether the fire will be turned off frequently.

Ten, the relationship between mixing ratio and idle speed

The mixture ratio will affect the level of idle speed - that is, the change in the mixture ratio is the cause of the change in idle speed. However, for many unskilled friends, instead of mastering how to accurately adjust the mixing ratio, it is better to master how to listen to the engine sound. Do not have to remember the screw to turn a few laps, as long as you listen to the sound - if the engine at a certain speed, the rotation is relatively stable (not fast and slow), at this time, you can screw another screw, reduce the speed to an acceptable degree - that is, hang a gear, grasp the clutch, blast the throttle, after the throttle is loose, the car does not go nor stall. That will do.

Some friends contact the motorcycle is not long, so do not dare to touch it, for fear that their beloved motorcycle is damaged. This is a natural but unnecessary thought. What is the car for? I think that most friends are used for walking, even so, there is no need to dilute the owner of the "subjectivity", the motorcycle as their service object, careful. You can do whatever you want to idle, it's okay, big deal, let's go to the repair shop to fix it, right? Heheh. Besides, there are so many enthusiastic motorcycle friends in the jar!

11. The idle speed is unstable

The cause of idle instability: When the oil channel or airway of the carburetor idle system is blocked or leaked, the idle oil supply appears thin or thick, resulting in engine idle instability.

1. The idle metering hole is partially blocked

Cause: The idle metering hole is partially blocked, so that the oil supply is thin in the idle state, resulting in the phenomenon of idle instability.

Elimination method: According to the above-mentioned carburetor cleaning method can be cleaned.

2, idle speed adjustment screw (commonly known as "wind needle") position change.

The function of the idle adjusting screw is to change the flow section of the idle oil passage or the airways by adjusting the idle adjusting screw, so that the idle oil supply of the carburetor can reach the ideal state. The idle speed adjustment screw is divided into two kinds according to the function of oil adjustment (such as CG125 carburetor) and gas adjustment (such as Magnolia 50 carburetor).

For carburetor professional manufacturers: Because the idle adjustment screw has a greater impact on the performance of the engine, the idle adjustment screw has been rigorously tested before the carburetor factory and has been adjusted to the best position. Therefore, the user is generally prohibited to adjust the idle speed adjustment screw. After a long period of use, if the idle adjustment screw position does change and cause adverse consequences, it can be adjusted.

12, there are two ways to find the best position of the idle speed adjustment screw:

1, the best adjustment method

2. Paris Adjustment Act
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