50 points! Question about the engine number of the handsome scooter! Please let the insiders know

Ask someone to do it, or you can be careful when you ride.

I hope you don't ride in Guangzhou, that is equivalent to buying for nothing.

The engine number of the scooter is at the bottom front of the left side of the engine. There are many kinds of scooters, different brands and models of engines, and their engine number positions are not the same, but most of them are printed at the bottom of the left side of the engine, and some are hit at the rear of the engine into the rear wheel.

Scooter spark plugs.

The spark plug of the scooter, most of them are installed on the right side of the engine cylinder head, but a few are installed on the left side of the engine cylinder head, such as some pedals of Suzuki, looking for the spark plug of the scooter, you have to remove the cargo box under the seat cushion to see, and some can also be seen by removing the cover under the seat cushion and behind the foot pedal.

The pulse high-voltage electricity sent by the high-voltage wire (nozzle wire) is discharged, and the air between the two electrodes of the spark plug is broken down, and an electric spark is generated to ignite the mixed gas in the cylinder.

**The engine of the scooter, this should not be found, if you want to ask the engine number in**, different 125** motorcycles are not the same, but most of them are in the lower front of the left side of the engine, as shown below is the engine and engine number.

It's on the engine, usually on the bottom right, and you look carefully.

If you want to die, then you need to see if your mix is right. It is normal to be noisy, probably because the mixing ratio is not right, causing combustion problems. It can't be burned completely, and it doesn't achieve that kind of burning effect.

It's like running a motor idling, or putting a hollow iron thing in an enclosed space and banging it. Will that sound be louder than knocking outside. line, look at the switch of the line.

There are many reasons for the loud sound, such as the valve clearance is too large, the timing connection (the small chain in the engine) is too loose, the scooter is self-adjusting the chain, if the valve clearance is normal, it is good to change the chain, the lights are not on, according to your description, the rectifier charge is too large, resulting in the bulb burning out, the bulb in the general instrument is not very useless, unless the current is too large. It is recommended to go to the car repair shop and ask the master to help you measure the voltage! (More than 14 volts is high) if it is too high, it is OK to change the rectifier, otherwise it is useless for you to just change the bulb, and it will burn again.

The gap between the valve and the rocker arm is large, find a mechanic to repair it, and small problems will generally not ask you for money.

The headlight is not lit should be a line problem, the headlight has two sets of filaments of high beam and low beam, which will not be broken at the same time, most of the negative pole line falls off, the headlight is not lit, the voltage rises, and the indicator light is burned out.

The sound is loud, look at the muffler, it's the exhaust pipe. No, let the car repairman burn it, so that the car will be better.

Actually, the problem is that you don't spend much money to get your car repaired. Dozens of dollars to get it. Then learn the craft too.

The overtaking clutch is broken, just replace it.

The two-stroke car is already very quiet.

What a sound! If you add a little throttle is a clicking sound, most of the valve clearance is large, just adjust it. The cost is generally around 35.

This engine is made by Jiangsu Jinyi Automobile Industry **** Jiangmen Branch, the model is imitation Yamaha, but only the structure imitates Yamaha, not the engine produced by Yamaha, and the quality can not be the same as Yamaha, Jinyi is a miscellaneous small factory, located in Wuxi, Jiangsu.

This engine is certainly not.

Yamaha's, and JYL is not a sign of Yamaha's Limhai, even if.

The 152QMI engine produced by Yamaha, which is specialized in the forest sea (not the forest sea Yamaha), also has nothing to do with Yamaha, don't be fooled. The JY in front of the engine model is the abbreviation of this engine manufacturer, but there is more than one manufacturer with the abbreviation of JY, and it is impossible to judge which one it is, but it is certainly not a large factory.

An oil leak is definitely not normal, and it has nothing to do with how fast or slow you ride. If there is oil leakage, it may be caused by oil leakage from the cylinder gasket or sand hole in the cylinder block or cylinder head or other reasons for oil leakage, you need to remove the seat cushion and the cargo box below, remove the carburetor and fan cover, and you can find the oil leakage point. Also, check the right crankshaft oil seal of the engine for problems.

The cause of oil leakage in the lower part of the scooter is: abnormal wear or deformation of the shock absorber tube.

1.Do-it-yourself methods:

Remove the shock absorber and turn it upside down, and then remove the screw (sometimes when removing this screw, the inside is rotating, and the shock absorber needs to be completely disassembled, and to a special tool) to check, wipe them clean and then apply a little *** sealant on the thread, and reinstall it.

2.Shock absorber structure diagram:

See if it's motor oil or gasoline.

Specifically, it should be repaired by the repair shop. Yours isn't a scooter, is it?

In general, there are the following reasons:

1. The engine oil is inferior and the oil quantity is not enough.

2. Insufficient tire pressure for long-term low-speed operation.

3. Clutch wear and slippage.

4. The mixture is too thin.

5. The calorific value of the spark plug is too low.

6. The engine has too much carbon.

7. The heat sink (engine) is too dirty.

You see if your damper is open.

The main reason is excessive resistance, check the wheel bearings, clutch.

Whether the engine model is 125 or 250 refers to the displacement, and the engine number is the number of each machine when the manufacturer produces it.

The engine number is similar to an ID card.