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Think that all the oil is the same
Hot, the car is on the road for a long time.
Idle speed adjustment is very low 
According to Xiaobian, I know that many neighbors like to adjust the idling speed very low, and some adjust to 800 rpm. This actually hurts the car. Under the low idling speed, the crankshaft is very bad, the small chain The small chain of the car is also easy to stretch. 
When driving, fully release the clutch so that the clutch can be fully integrated. Do not pinch the clutch with your hand to make it semi-detached. Some people think that this will stop the brakes in the event of an emergency. In fact, this will cause the clutch to wear too fast and the speed will decrease.
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The misunderstanding of motorcycle maintenance, have you recruited?
Motorcycle maintenance is easy to go into some misunderstandings. It is necessary to learn some knowledge. It will make us less detours on the road of riding. The following small series organizes the more frequently encountered maintenance misunderstandings and share them with everyone. .
Many car owners think that no matter what brand of oil can be added to the engine, and even some people love to add engine oil to the engine, the purpose is to reach the dipstick marking line, which is actually very wrong.
On the surface, this is fuel-efficient, but the heat generation and heat dissipation of different types of engines are different. In addition, the temperature changes in the region, the engine's own newness and the difference in workload, etc., determine the model of the oil. If the selected oil is too thick, the clutch will not be easily separated, the engine will run poorly, and the oil will be too thin to make the temperature rise too fast.
It is understood that some Mo friends like to drive the car first and then go forward, and some Mo friends like to go after the hot car. In fact, it is not too long to preheat the vehicle. If the engine is started in place for more than 2 minutes, the engine will be poorly cooled.
In addition, in the winter, the water in the four-stroke exhaust pipe can not be eliminated, and it is easy to rust and corrode the perforation. The correct way is to start the engine for about 30 seconds to drive slowly. However, it is not recommended to slam the throttle, otherwise it will easily cause premature wear in the cylinder and dry friction of other parts, because the oil does not fully preheat and lubricate the working surface during cold weather. It is recommended to drill two or three eyes on the lower end of the exhaust pipe near the tail to remove moisture remaining in the exhaust pipe.
Why is this so? That is because the inertia of the crankshaft is insufficient, so the idle speed is very low, and the impact of the up and down vibration of the vehicle is large, and the impact force on each component is also increased.
Holding the clutch
Often slip in the air
The four words in the neutral block seem to be simple, but there are still many car owners who often forget that this is a taboo, in order to achieve fuel-saving purposes in the neutral block.
In fact, many models of EFI engine technology have been able to make the vehicle do not spray at all with the block-sliding state, and the neutral-sliding engine will be regarded as an "idle state", thus emitting extra fuel. Moreover, for safety reasons, it is strictly forbidden to slide in the neutral position when going downhill. Because there is no traction resistance of the engine at this time, the speed will be faster and faster. If the foot brake is used to control the speed, the brake pad will be heated. Increase, thereby weakening the braking force and affecting the braking effect.
Use only one brake
No matter what car, many people like to use only the rear brake or the front brake. This is not good. It is recommended to develop a good habit of braking before and after, so that not only the safety factor is doubled, but also Braking is also good.
If you love to use the rear brakes, then the rear brakes will age very quickly, and the brake force of the entire car is on one brake, all on one wheel. After a long time, the wear of the tire will change. The front and rear tires will not be particularly on the line.
Misalignment of valve clearance
Speaking of the valve clearance, I have to say that the valve clearance can affect what, some people adjust the valve and want the sound to be quiet. This is wrong. Some people think that the valve clearance is a little sound, no problem, this is not good.
First, the valve clearance affects the ventilation of the entire engine, affecting the engine's afterburning period (the afterburning period is the gasoline burning time after ignition). So what is the effect of returning oil after the valve adjustment is tight? The answer is that the sound will be quiet, but the afterburning period becomes shorter, the fuel consumption increases, the cylinder temperature increases, the engine sticks to high fever, the idle speed is unstable, and so on.
Then another is that the valve clearance is too large, the valve clearance is too large, he will make the burning period longer, the power of the car will decrease, the sound will become larger, and the high-speed valve will fall off easily.
Think that all kinds of batteries can add water
Under normal circumstances, if the battery level is found to be reduced, distilled water or electrolyte can be added to the standard height, but currently the maintenance-free battery on the market does not need to add distilled water or electrolyte. This is because the battery is processed through a series of special processes, only need to recharge, do not add any liquid.
The most obvious identification method for ordinary battery and maintenance-free battery is: ordinary ancient brick battery is generally white transparent shell, and there are two obvious upper and lower limits mark, which is convenient for observing the liquid level; maintenance-free battery is generally more The color and the outer casing are opaque and are marked with cautions.
In addition, the ordinary type of battery has obvious six red or plug covers at the liquid injection hole, while the liquid-free hole of the maintenance-free type battery is only a long strip-shaped pressure plate, and the surface is smooth and smooth.
I think the tires are almost OK.
Tires are critical to the car, but others do not check the wear and pressure of the tires. When the tire wears to the limit, its bearing capacity will be reduced, and it will be easily pierced by foreign matter, causing a puncture.
If the air pressure is low, the radial deformation of the tire increases, causing the cord to stretch and deform greatly, resulting in uneven wear of the tread, affecting the stability of the running, and increasing the running resistance; if the air pressure is too high, the middle portion of the tread may be excessively worn, thereby reducing The braking performance of a motorcycle can also cause a puncture in summer. Therefore, you must not save money or save trouble, neglect tires and air pressure.
I think the higher the gasoline label, the better.
Everyone may know that the higher the compression ratio, the higher the label of the gasoline he needs, but I think some people don't know what it is because some people use 95, and the higher the label, the better. this is not right.
The label of gasoline represents the antiknock of gasoline. The higher the label of gasoline, the slower it burns. It can also withstand higher compression ratios. If a car requires 92, If you add 95 for a long time, this will cause the gasoline to burn unclean, the engine is weak, the valve is carbon or even leaking, and it will cause black smoke. For example, if you need a 95th petrol car, use No. 92 gasoline, then the engine will be knocked, the valve will break, start to rebound, and so on.