What are the common CG, CB, and GS of motorcycle engines?

First, the development and pros and cons of CG engines

The CG machine, also known as the ejector machine, is known for its simple structure, low cost, durability, and leather characteristics. The Japanese Honda technology from the 1950s was introduced to China in 1984. Since the motorcycle was unattainable to most people, its true prosperity was in the late 1980s and 1990s.

With the pace of reform and opening up, the CG125 model was first popularized in the coastal cities of southern China, and this trend became popular in inland cities. Due to the characteristics of the engine, the quality was reliable and the quality was reliable. In addition, the imperfect legal system and the influx of smuggled goods.

At the beginning, the whole vehicle was imported and assembled. Compared with the original goods, the quality difference is not big. With the surge of domestic consumer groups and the pursuit of the interests of the merchants, the import of the whole vehicle becomes the import of the main parts of the engine. Assembly, so there is a certain difference in quality.

At this time, the supporting merchants have already fixed this piece of fat, and a large number of domestically produced parts of the imitation CG engine appear at a low price. More than 10,000 CG125s, sold by domestic matching parts, only sell for 7 or 8 thousand or even lower. Consumers who have been rushing to the excellent quality of CG125, but seeing the same style of things, but only half the price, will be heart-wrenching, but often bought back is disappointing.

In fact, the reason why the ejector is solid is because of the durability and precision of the transmission parts between the cam and the rocker arm, as well as the main components such as the valve train. Once this is lost, the imitation CG125 will inevitably erect in the machine. The valve rocker, crankshaft, and camshaft entered the repair shop in a slamming sound.

However, ordinary consumers do not understand this point, so the quality of CG must be reduced, and at this time just in time to catch up with the market impact of GS small chain machine, the ejector machine represented by CG has to fall into a shout Resist the engine.

Representative brands: Wuyang-Honda, Sundiro Honda, Qianjiang, Zongshen, Haojue, Longxin, etc., these manufacturers will play to the extreme.

Advantages: Classic structure, durable, and entered the Chinese market for many years, especially in Guangdong and Guangxi.

Disadvantages: The old model from Honda in the early 1950s has a long history of development. After entering the Chinese market for more than 20 years, it has begun to show its backwardness. Fuel efficiency is not high, compression ratio is low, fuel consumption is high, gas distribution system is a "hard" drive, many links, many accessories and easy to lubricate, valve floating is large, not conducive to high-speed operation, noise and vibration are inevitable! The power performance is slightly worse than several other models. It has no balance shaft and low comfort.

Second, the development and advantages and disadvantages of CB engines

The technology of CB machine comes from Honda in the 1970s. CB machine is a new generation of CG ejector machine. It has higher technology content, better power and fuel economy. It is highly hoped by many people, but it is unfortunate in China. It has been performing poorly, and in terms of popularity, it is also much worse than its predecessor CG machine. The data analysis of experts from the motorcycle inspection institute said that the CB machine was not sold in China. Why?

In the same year, the CB machine created a generation of classic style Wuyang-A, which was also sought after for some days. Unfortunately, it has become a victim of quality. Because the manufacturing cost of the CB machine is too high, the OHC structure of the CB machine, the overhead camshaft, and the timing chain train mechanism have higher requirements on the precision of the machine than the CG machine, especially the cheap small chain of the supplier at that time. Most of the quality is not enough, and the chain is easily stretched too long to cause noise.

CB machine cylinder diameter and stroke are relatively close, it is designed for high-speed operation, and most people buy a car when they are simple test rides, only need to start vigorously, strong will make consumers have a good impression, CB machine slightly Mian's starting performance is not enough.

In addition, when the CB machine is on the market, it is very popular when the CG machine is popular, including many manufacturers who say that the CB machine is not good, the quality is not good, etc. when promoting the CG machine. . . A series of factors have come together, resulting in the status quo of the CB model.

If the CB model is assembled in strict accordance with the operating standards of Japanese manufacturers, and strictly in accordance with the procurement standards of Japanese manufacturers, his durability is still good, but unfortunately did not grasp the era.

Representative brands: Wuyang Honda, Sundiro Honda, Jialing and so on.

Advantages: the power is better, the fuel-saving, OHC structure, the overhead camshaft, the timing chain train valve mechanism precision of the machine parts, higher requirements than the CG machine;

Disadvantages: As the old model that Honda put into the Chinese market, the CB machine has a higher compression than the CG machine, and the emission has improved compared with the CG machine. However, the technology of 30 years is still in use, and it is impossible to rely on the secondary combustion of the exhaust gas. Adapt to the emission requirements of the next National III in the new era.

Third, the development and pros and cons of GS engine

The GS machine is derived from the technology of the Japanese Suzuki company from the 1980s to the 1990s. Since its inception, it has carried a strong SUZUKI whirlwind to sweep the domestic engine market. At that time, when the engine on the domestic market was a hemispherical combustion chamber flat-topped piston, the double The vortex hemispherical combustion chamber hemispherical piston technology immediately opened the market for several major cooperative manufacturers in Suzuki.

The GS machine not only lies in its more suitable piston-to-cylinder stroke ratio, but also provides a strong low-torque, which makes the start more powerful, and the intelligent digital igniter that can adjust the optimal ignition advance angle. The appearance of the GS machine is also commendable. The regular arrangement of the wide heat sink, the original pure black engine, and the overall shape of the Founder directly introduced the shape of the Japanese Suzuki GS125 model, which made the Qingqi Suzuki King and Haojue Diamond Leopard highly sought after.

At that time, the Suzuki Wang GS machine began to appear in multiple grades. The original machine and assembly machine were completely localized. At this time, many large-scale supporting manufacturers split the self-supporting portal, the shoddy of the small supporting manufacturers, the gradual decline of the quality of the GS machine, some complicated situations inside the personnel, etc., all of which aggravated the collapse of the young riding empire.

On the other hand, Haojue, who was sitting in the southeast at the same time, also introduced the Japanese tooling process, but in a few short years, the GS machine's diamond leopard and GN were carried forward, occupying more than half of the country.

20 years ago, the Japanese original "Suzuki King" GS125ES has a maximum power of 10.3KW and a compression ratio of 10:1 or more. It is similar to YAMAHA's YB engine and can easily pass 100KM/H. Now the Chinese version of the GS engine is big. It is also more beautiful, but the power has shrunk a lot.

The valve has been reduced in diameter; the original "protruding" piston top has become the current "hemisphere"; the original GS125ES has no "tone" at 3950 rpm, simplifying the variable-entry transistor PEI to Ordinary DC-CDI. The intake valve is reduced, the compression ratio is lowered, and the protruding piston is changed to a hemispherical shape. . . These are changes in the direction of low performance.

In the same year, the four-valve Suzuki knife, which was configured in the same way as the imported original car, entered the domestic market. However, due to its high price, it has not been popularized. It has not brought the GS machine into a comprehensive flowering state. I believe many companies will regret why they did not choose the same year. The insistence on quality, but lost the market today for the sake of the moment.

Representative brands: Jincheng, Qingqi Suzuki, Qingqi, Haojue, Haojue Suzuki.

Advantages: Double vortex hemispherical combustion chamber, hemispherical piston technology, GS uses a larger bore/stroke ratio, which is more suitable for high power.

Disadvantages: The fuel-saving effect, engine noise reduction and other aspects of the performance are moderate, the engine temperature rises, the oil requirements are also high, and the low-speed start acceleration is relatively weak.