JL50QT
Chinese scooter 50 cc Jialing JL50QT manufactured by China Jialing Industrial Co., Ltd. (Group) (manufacturing plant in Zhongqing, Zhongqing Municipality, China; produces a variety of motorcycle equipment under the Jialing , including 50 cc scooters). The curb weight of the Chinese scooter is 79 kg, front tires. 3.00-10 back. 3.00-10, gross weight 154 kg, total seats 1 (including driver), max. speed 50 km/h, wheelbase 1250 mm, engine 139QMB-G.
Jialing scooter - technical characteristics of 50 cc models
The well-known Chinese company Jialing has been producing small-capacity scooters for the past two decades. During this period, many models of scooters were produced using improved production lines. The manufacturer equips scooters with various power units, the cubic capacity of which ranges from 50 to 150 cubic meters. There are also 80cc models, popular in China and abroad. Let us dwell in detail on the features of scooters with a cubic capacity common on the domestic market - 50 cm3.
This brand of scooters is well known among domestic motorcycle enthusiasts.
Let us first consider the general technical characteristics of the models, and then we will look at the features of individual modifications. Let's start with the scooter's power unit, which has one cylinder with a volume of 49.5 cm3. This is a four-stroke engine that develops power up to 9 hp. with a maximum rotation speed of up to 7.5 thousand revolutions. Torque is 3-5 Nm at 5 thousand revolutions. Idle speed is 1600 per minute with an error of 100 revolutions. The engine compression ratio is 10.5. The inner diameter of the working cylinder is 52.4 mm, and the piston moves with a stroke of 57.8 mm.
It should be noted that the engine is quite economical - only 2.5-3 liters of fuel are required to cover a hundred-kilometer distance. The engine runs on AI-92 gasoline. You can also use fuel with a higher octane number, for example, AI-93 or AI-95. Considering that the fuel capacity of all models is 5.5 liters, the gasoline supply is enough for a fairly long walk.
The engine is started from an electric starter by pressing the start button. If necessary, you can also start the engine from a kickstarter, which is very convenient.
All scooter models are equipped with an automatic gearbox, providing fast and smooth acceleration, as well as minimal noise levels. The CVT transmission with a V-belt provides continuously variable gear shifting and does not require squeezing the clutch lever. It is enough to twist the gas handle, and the scooter with the driver starts smoothly and quickly reaches maximum speed. Scooters use a capacitor or electronic CDI ignition system.
All scooter models are equipped with an automatic gearbox
Now about the speed limit. Like all small-capacity scooters, Jialing scooters, whose mass is 80-90 kg, with a maximum load not exceeding 100 kilograms, can accelerate to 75-80 km/h. This is a fairly good speed for a small two-wheeled vehicle, which ensures traffic safety and the driver feels comfortable.
Depending on the modification of the scooter, its length is 1.67-1.82 m. The height of the models differs slightly and is 1.1-1.14 m. The width of the mirrors varies from 0.62 to 0.69 m. The distance between the axles of the front and rear wheels is 1.21-1.29 m. A fairly good ground clearance of 9-11 cm allows the scooter with a driver to confidently move both along city highways and over country roads.
The chassis and braking system of various modifications have a number of differences. The front wheel is locked in most models with a disc brake, but there is also an option with a brake drum. All types of scooters have a drum brake on the rear wheel.
To quickly stop the vehicle in case of an emergency, use two brakes simultaneously. This allows you to significantly reduce the braking distance.
The front suspension is made in the form of two hydraulic shock absorbers connected to a pendulum fork, and the rear shock absorber, depending on the model, can be single or double. Scooters are equipped with front and rear wheels with dimensions from 100/60 to 120/70 depending on the version. The front and rear disc sizes are the same and are 3.5-10.
The chassis and braking system of various modifications have a number of differences.
The price of scooters varies from 400 to 500 conventional units and is determined by the technical condition, as well as the brand. The sale of motorcycles is carried out by various motorcycle companies that offer both new and used scooters. If you want to purchase a new model with a guarantee, you should use the services of official dealers.
Now let's look in more detail at the design features and differences of the most common models.
JL50QT-10 III and JL50QT-10
Both models are very similar in appearance, but are easily distinguishable by their wheel sizes. The JL50QT-10 scooter has a 100/60 front wheel, and the JL50QT-10 III scooter has a 110/70 front wheel. Accordingly, the rear wheels are also different. The base model is equipped with a 100/60-10,200 drive wheel, while the JL50QT-10 III scooter has a larger 110/70 wheel. In addition, the JL50QT-10 model is equipped with a front wheel drum brake, and the JL50QT-10 III modification has a hydraulic disc brake.
The overall dimensions of the models are the same and are 1670x620x1100 mm. The distance between the wheel axles is 1.21 m. The ground clearance is 9 cm, and the weight is 81 kg. Both modifications are capable of accelerating to 75 km/h with a maximum load of no more than 90 kg. The JL50QT-10 and JL50QT-10 III scooters will allow novice motorcycle enthusiasts to master driving skills, and will also delight experienced scooter riders with their dynamism.
Scooter JL50QT-10
JL50QT-16
This modification with 120/90 wheels is similar to previous models. It is distinguished by increased dimensions equal to 1820x655x1120 mm and an increased center distance of 1.27 m. The ground clearance is 1 cm greater than previous models and is 10 cm. The scooter weighs 85 kg. It can reach speeds of up to 80 km/h with a driver weighing 100 kilograms.
JL50QT-19, JL50QT-20 and JL50QT-22
These three modifications of scooters differ from previous models in their increased dimensions. The dimensions of the scooters are 1825x690x1140 mm. The distance between the axles of the front and rear wheels reaches 1.295 m. The ground clearance increased to 11 cm allows scooters with 120/70 wheels to be used on rough terrain.
JL50QT-26 and JL50QT-30
The twenty-sixth and thirtieth models are the most powerful and dynamic. They have proven themselves in various operating conditions as reliable and economical scooters. Externally, distinguishing them from other scooter models is problematic, since the only difference is the torque of the power unit increased to 5 Nm.
Scooter JL50QT-26
Scooters
The first models, which are considered the ancestors of modern scooters, appeared in Europe at the turn of the 19th and 20th centuries. These were the German light motorcycle Hildebrand & Wolfmuller and the French Auto-Fauteuil. The first one was released in 1894. Its main difference from other brands of that time was its low frame. Two-cylinder 4-stroke engine of the 1,488 cm3 model? had a power of 2.5 horsepower. The scooter of engineer Georges Gautier, released by him in 1902, had a low frame and a comfortable seat with armrests. The name “scooter” comes from the English verb “to scoote” - to run away, to get away. The fact is that peculiar “scooters”, made from a scooter and a motor in makeshift conditions, were popular among American robbers at the beginning of the 20th century. In 1936, the American company Cushman Company released a number of inexpensive, reliable models. The scooters were very simple and economical: 3 liters of fuel was enough for 100 km. This certainly contributed to their popularity. The most famous model of that time was the Model 53. In the post-war period, scooters retained their popularity, especially in Japan, which began producing them in huge quantities. In 1946, the Italian concern Piaggio designed the Vespa, which became the world's first commercially successful scooter. It is Vespa that is considered the founder of the European school of scooter modeling. Characteristic features of scooters; ? the engine is combined with the transmission and moved under the seat; ? the presence of a comfortable footrest. City scooters with engine capacity up to 50 cm? Perfect for traveling short distances at speeds of 50-60 km/h. Due to their narrow profile, such models are not suitable for traveling over rough terrain. Equipping with front and rear brakes prevents the wheels from lifting off the surface during sudden braking. Small size and light weight are the main features of these scooters: Yamaha Cygnus, Yamaha WHY 50, SYM Orbit 50, Piaggio Fly 50 4V, Italjet SX1. Distinctive features of the off-road scooter are reinforced suspension and a wide wheel profile. The engine capacity usually does not exceed 125 cm?. This scooter is optimal for out-of-town trips, for example, to a village or country house. Due to its high cross-country ability and economical fuel consumption, the scooter can cover long distances and is not afraid of dirt and mud. Use in urban environments can hardly be considered appropriate due to the high power and special rubber. The most popular models are: Hyosung SF 50 Rally, Yamaha TTX 115i Adventure, Hyosung sf 50, Honda Zoomer AF58, Yamaha Zuma 125; Benelli is among the European manufacturers. Sports scooters are essentially an analogue of motorcycles. Most models are characterized by manual gear shifting and engine displacement to the front of the scooter. Used for quick acceleration and maneuvering, the engine capacity of such models ranges from 125 to 250 cm³, driving it requires some driving experience. The model range is represented by Yamaha AEROX R, Kawasaki Ninja 250R, Gilera Nexus 500, Honda NSC50R, Suzuki Burgman 400, Honda SH 150i Touring scooters are very popular in Europe. Distinctive features are increased comfort, space for storing and transporting things, and large wheels. Models in this category: Aprilia SR Max, Honda Lead AF48, Honda DIO AF 28 SR, Daelim S2-250.
Wiring diagram for Jialing JL50QT 16 scooter and other models
During the operation of Chinese scooters, questions may arise related to the operation of electrical equipment. A wiring diagram will help you understand the features of connecting electrical devices. It’s not for nothing that Chinese scooters are compared to Siamese twins. They are not only similar in appearance, but also have a common electrical circuit, in which there are practically no differences.
Specialized websites present many electrical diagrams of Chinese Jialing scooters. The most successful and informative is a color diagram, in which each conductor has a specific color. It should be noted that the colors of the conductors shown in the diagram correspond to the color of the insulation of the wires on the scooter. This allows you to monitor the correct connection and quickly find a fault if the need arises.
The electrical equipment of all models is connected according to a standard circuit with a common negative wire. It is easy to find on a scooter due to the green color of the insulation. It connects all elements of equipment - indicator lamps, rotary relays, tachometer, fuel sensor, sound signal and other electrical devices.
Jialing JL50QT 16 scooter wiring diagram
Ignition circuit elements.
One of the most important electrical circuits in a scooter is the ignition circuit. It includes the CDI ignition module ( 1 ), ignition coil ( 2 ), spark plug ( 3 ).
CDI ignition module.
The CDI ignition module ( 1 ) is made in the form of a small box filled with compound. This makes it difficult to disassemble the CDI unit if it malfunctions. Although the modular design of this unit simplifies the process of replacing it.
There are 5 wires connected to the CDI module. The CDI module itself is located in the bottom of the scooter body near the battery compartment and is secured to the frame with a rubber clamp. Access to the CDI block is made difficult by the fact that it is located in the bottom part and is covered with decorative plastic, which has to be completely removed.
Ignition coil.
Ignition coil ( 2 ). The ignition coil itself is located on the right side of the scooter and is mounted on the frame. It is a kind of plastic barrel with two connectors for connection and a high-voltage wire output that goes to the spark plug.
Structurally, the ignition coil is located next to the start relay. To protect against dust, dirt and accidental short circuits, the coil is covered with a rubber cover.
Spark plug.
A7TC spark plug ( 3 ).
The spark plug turned out to be cleverly hidden on the scooter, and it can take quite a long time to find it the first time. But if we “walk” along the high-voltage wire from the ignition coil, the wire will lead us straight to the spark plug cap.
The cap is removed from the candle with a little effort. It is fixed to the spark plug contact with an elastic metal latch.
It is worth noting that the high-voltage wire is connected to the cap without soldering. The insulated stranded wire is simply screwed onto the screw contact built into the cap. Therefore, you should not pull the wire too hard, otherwise you can pull the wire out of the cap. This can be easily fixed, but the wire will have to be shortened by 0.5 - 1 cm.
Scooter Jaling - precautions
In accordance with the requirements of the Jialing moped operating manual, a number of requirements must be observed to ensure the safety of the driver while driving. It is important to adhere to the rules of movement in populated areas and beyond, as well as regularly monitor the technical condition of the moped before each departure from the garage. It is important to pay attention to the condition of your tires and maintain their operating pressure.
It is necessary to pay attention to the operation of the motor. If you notice increased noise or extraneous sounds, you should refrain from leaving and contact the service center specialists.
It is strictly forbidden to operate the scooter while intoxicated. You should not drive if you are not feeling well.
When riding, you must wear a protective helmet and wear a bright vest, which allows drivers of other vehicles to pay attention to the scooter with the driver. You should also drive with your headlights on, which will make your small vehicle more visible in traffic. If necessary, it is possible to give a warning signal by pressing a button located on the steering handle.
