Last night the scooter was put on the outside for a while, and it didn t catch fire while riding. 1

The consistency of the engine oil is high, change the thinner engine oil, the specific reference is as follows.

The viscosity of the oil should be determined according to the temperature of the area in which it is located. Generally speaking, compound viscosity oil should be used in winter to ensure the low temperature fluidity performance of the oil. In summer, the viscosity of the engine oil is mainly considered, because the oil with high temperature and too low viscosity in the summer cannot maintain enough oil pressure, so that the engine is not lubricated.

Specific viscosity applicable temperature:

Viscosity level Applicable temperature range, season China region.

30 0 +30 Summer Northeast NW.

40 0 +40 summer across the country.

50 +5 +50 Summer South.

5w 30 -25 +30 winter and summer universal northeast and northwest.

5W 40 -25 +40 Winter and Summer Universal Northeast and Northwest.

10W 30 -20 +30 winter and summer general North China, Midwest.

10W 40 -20 +40 winter and summer universal North China, Midwest.

15W 40 -15 +40 Winter and summer universal North China, Midwest.

20w 50 -10 +50 winter and summer universal south of the Yellow River North of the Yangtze River.

4.The power and displacement of the engine are recommended to be above the SG level for high power, or synthetic engine oil; For example: imported cars over 250.

5.The type of engine such as: air-cooled, oil-cooled, water-cooled, etc. The working temperature of air cooling is high, and the corresponding viscosity and grade can be higher.

6.Riding habits such as: like high-end high-speed, like the feeling of acceleration, and always stable no more than 60 yards, 40 yards in the urban area and do not often shift gears, etc.

7.Cycling environments such as: often running long distances? Or just wandering around the city? Or both? Long-distance is also recommended for SG grade or above, or synthetic motor oil. It is recommended to have a lower viscosity in urban areas, such as: 10w-40 and so on.

8.Cycling conditions: are they all first-class roads? Are they all mountain roads? Neither good nor bad? Both? In mountainous areas, it is recommended that the viscosity and grade be slightly higher.

Look at the spark plugs to see if there is any fume.

The deterioration of the volatile gasoline inside the carburetor clogs the measuring holes of the carburetor.

Gasoline is passed from the fuel tank and then through the gasoline filter into the carburetor, which can filter out the impurities mixed into the gasoline and the oxide scale in the tank. If the quality of the filter is defective, some impurities can still pass through the filter and enter the carburetor.

In addition, gasoline contains components that can form gum, which will condense after long-term deposition and adhere to the surface of carburetor parts (such as measuring holes), oil ducts and float chambers.

The carburetor is a delicate mechanical device that uses the kinetic energy of the inhaled air stream to atomize gasoline. Its important role in the engine can be called the "heart" of the engine. Its complete device should include a starting device, an idle device, a medium-load device, a full-load device, and an acceleration device.

I'll tell you from my actual experience that it's a loss of electricity. If you have a good battery for a new car, you can't lose electricity for 20 days, but the old battery of an old car can't. Just charge it.

If the electric start does not move, it is caused by the loss of power of the battery, and the power consumption of the headlamp is very small compared to the electric start, so it cannot be judged by the brightness of the inner headlamp.

It is not easy to start the scooter with its feet, so it is better to start it with electricity. If the battery is out of power, you can charge the battery before starting.

If you don't ride the bike for a while, the gasoline in the carburetor will volatilize, and the fuel tank switch of the scooter is that the engine does not work and does not produce oil, so at this time you must use the electric start to play for a while, or turn off the key first, start with your feet and pedal for a while, and then turn on the key to start. If this is not possible, it is possible that the volatile gasoline in the carburetor has deteriorated and blocked the measuring hole of the carburetor, and the carburetor needs to be cleaned before it can start.

Dear, hello, I'm glad to answer for you The reason why the car can't catch fire after being stopped for a long time is: loosen the bottom screw of the carburetor with a screwdriver, and observe whether there is gasoline flowing out to eliminate the oil circuit problem; Plug the installation position of the spark plug with your finger, start the engine, and observe whether there is any gasoline left on your finger to rule out the possibility of base high flooding.

Kiss bend buried Glad to serve you The reason why the scooter can catch fire but does not move: 1. The automatic centrifugal clutch mountain dispersor is broken. The clutch is not operated properly, and it is stuck when it does not return, resulting in the motorcycle being ignited in the rush, unable to refuel, and unable to walk.

The automatic centrifugal clutch is broken and needs to be replaced or repaired. 2. The transmission belt is broken. Generally, the pulley or belt is faulty, and the transmission system behind it needs to be disassembled to be visible, and if the belt is broken or the belt has a large gap, it must be replaced with a new one.

3. The small sprocket falls off or the rear sprocket falls off the chain and needs to be checked and repaired. 4. The dilution of the mixture causes the gas to act on the piston after the ignition outbreak is insufficient. Causes failures such as prolonged combustion time and engine overheating.

5. The carburetor is flooded or blocked, and the spark plug is burned out. Check whether the oil circuit is blocked, loosen the screw at the bottom of the carburetor, let the gasoline flow inside for a while and then tighten, if there is dirt in the carburetor, check the spark plug again. The carburetor needs to be cleaned or replaced after a long period of use, and the spark plug burns out and is replaced with a new one.

The scooter ignition can sometimes be played, sometimes it can't be played, sometimes it can't be played but it can be played again after pushing for a while, this kind of starting difficulty failure, mostly related to the following situations:

1.The cylinder pressure is insufficient, and there is air leakage in the valve or intake pipe.

2.The spark plug is defective, or the high-voltage electricity is faulty, or the fire is weak.

3.Gasoline or fuel mixture is problematic and should not be ignited to cause difficulty in starting.

This kind of sometimes non-existent, sometimes good and sometimes bad fault, the highest is to overhaul when the fault occurs, because the fault may not be found in the normal time, and it is necessary to check the various possibilities that can cause this fault separately, find the specific cause of the fault and then repair it according to the situation.

Check whether the cylinder compression is normal, and whether there is any air leakage in the valves, intake pipes and other hoses.

Check whether the pressure of the cylinder is low, whether the valve clearance is too small, or the valve closure is not tight due to carbon deposits, wear, ablation and other reasons. Check the engine intake pipe and other hoses for aging or slight air leakage, sometimes the air leakage is not obvious, which can sometimes lead to failures that sometimes can be opened, and sometimes cannot be opened.

Check whether there is a problem with the spark plug and the high voltage, and whether the high voltage is broken or weak.

Check whether the spark plug is bad, whether the spark plug electrode gap is incorrect, and the electrode gap is too large or too small. Check whether the high-voltage electricity is normal, if there is a problem with the high-voltage electricity, check whether the spark plug, high-voltage bag, igniter, magneto, ignition switch and flame-out switch are damaged, and whether the line between these parts is open or short-circuited, and whether the wiring plug is loose and virtually connected. In the case of EFI motorcycles, also check if there is a problem with the sensors related to the ignition system and their wiring.

Check whether the gasoline and oil supply are normal, and whether the carburetor is blocked or improperly debugged.

Check whether the gasoline oil quality is not good, whether there is too little gasoline in the fuel tank, or whether there is a problem with the fuel tank switch and the fuel supply is not smooth. Check whether the air filter, carburetor and exhaust pipe are blocked, whether there are problems with the mixing ratio, oil level, oil needle, vacuum membrane of the carburetor, whether the automatic enrichment device, that is, the electronically controlled damper, can not concentrate the mixture, and whether the negative pressure fuel tank switch is damaged, causing the mixture to be too concentrated or flooded due to the seepage of gasoline from the suction pipe.

If the scooter can ignite and increase the throttle normally, but the car cannot walk at all, it may be caused by the transmission belt broken or falling off, the spline of the rear axle and wheel, and the damage to the pulley. Some scooters are fitted with gliding gear, and it is possible that it is damaged and skidding.

It must have been caused by a broken belt.

It could be that the throttle cord is broken.

You can change one, and it's only ten or twenty yuan.

1. The pedal is generally lit when it starts, if it can't be played two or three times, don't start the electricity, the reason is that the battery always uses electricity, if it can't be started, it is easy to cause the battery to burst, and the battery has no battery.

2. If you take a kick, the temperature is relatively low in winter, and it is easy to not catch fire, then you should strangle the seal (also known as the choke door) under normal conditions should be pressed to the end, and the cool car should be dialed to the top when it starts, and the section should be put in the middle about 15 seconds after the car, and when the car completes the preheating, it will return to the normal state - press to the end. This process takes about three to five minutes.

3. Regarding the idle speed to ask the question of Heng Qi Yu, sometimes it is not ignited, because the idle speed is relatively low, and it is okay to look at the number of miles in normal summer to express the pointer to one grid or more than one point, and adjust it to more than one and a half or less than two in winter.

4. The problem of the spark plug, you can replace one, sometimes the oil will flood the mouth, see if the spark plug head has oil, wet or not, and it will not catch fire.