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The working process of the two-stroke engine is as follows:

1. The piston moves the mixed airflow into the crankcase.

2. The piston descends the mixing air pressure to the combustion chamber to complete the first compression.

3. After the mixture is delivered to the cylinder, the piston is closed and the intake and exhaust ports are closed. When the piston compresses the gas to the minimum volume (this is the second compression), the spark plug is ignited.

4. The pressure of the combustion pushes the piston downward. When the piston descends to a certain position, the exhaust port opens first, the exhaust gas is sent out and the air inlet is opened, and the new mixed gas enters the cylinder to exhaust the remaining exhaust gas.

At the same speed, because the two-stroke engine burns more times than the four-stroke, the power is large, and the two-stroke engine is much lighter than the four-stroke engine of the same displacement, so the second flush in the motorcycle has an overwhelming advantage. However, since the intake and exhaust of the two-stroke engine are simultaneously performed, when the engine speed is low, since the exhaust port is opened for a long time, a part of the fresh mixture gas is discharged together with the exhaust gas from the exhaust port, so The power is not high at the bottom speed, and the new two-stroke engine has added some components to improve this problem such as YAMAHA YPVS, HONDA's ATAC SUZUKID SAEC. Due to the coke produced by the combustion engine oil and the intake and exhaust holes on the cylinder wall, the two-stroke engine wears much faster than the four-stroke engine.

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Take the working principle of a four-stroke engine and a two-stroke engine as an example:

The four-stroke engine has a wide range of applications, and the four-stroke engine means that the piston fires once every four reciprocating cylinders. The specific working principle is as follows:

1. Intake: At this time, the intake valve opens, the piston descends, and the mixture of gasoline and air is sucked into the cylinder.

2. Compression: At this time, the intake and exhaust valves are closed at the same time, the piston is up, and the mixture is compressed.

3. Combustion: When the mixer is compressed to a minimum, the spark plug flashes to ignite the mixed gas, and the pressure generated by the combustion pushes the piston down and drives the crankshaft to rotate.

4. Exhaust: When the piston descends to the lowest point, the exhaust valve opens, the exhaust gas is exhausted, and the piston continues to move upward to exhaust excess exhaust gas.

The working principle of the two-stroke engine As the name suggests, the two-stroke engine is that the piston moves up and down two times, and the spark plug is fired once. The intake process of the two-stroke engine is completely different from that of the four-stroke engine. The two-stroke engine has to undergo two compressions. On the two-stroke engine, the mixture first flows into the crankcase and then flows into the cylinder. The mixture of the four-stroke engine flows directly into the cylinder. The crankcase of the four-stroke engine is used to store the oil. The two-stroke engine cannot store the oil because the crankcase is used to store the mixture. Therefore, the oil used in the second-stroke engine cannot. Recycled combustion engine oil.

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After the motorcycle is used for a period of time, the brightness of the headlights often has a depletion phenomenon. The main reason and treatment of the headlight brightness failure are:

Headlight input voltage is too low: Please check the generator function and the oxidation degree of the line connector.

Lamp tungsten filament aging: In order to optimize the brightness of the bulb, the bulb can be replaced every 3 years.

The headlight mirror has flaws: even if the crack on the surface of the headlight is very fine, it will affect the projection of light. The solution to the crack or scratch is to replace the entire headlight group.

HID motorcycle headlights

Envy the automotive grade HID high brightness xenon headlights? Or do you like the domineering effect of heavy-duty motorcycles equipped with xenon headlights? Make good use of the car's conversion kit, and the motorcycle can easily upgrade the headlights.

Confirm the source of the headlight power supply before the modification

As long as the motorcycle can be turned on when the motorcycle is unlocked and the motor is not activated, the headlight power can be directly obtained from the battery, and the HID of the motorcycle is absolutely no problem! On the contrary, the engine can be turned on to turn on the headlights, indicating that the headlight power supply is obtained from the motorcycle generator, which involves circuit modification, and the project is rather cumbersome.

Safety modification, quality stability is the most important

Because the motorcycle is exposed all day, it is easy to be damaged by sand and dust, and the road is not shocked by the unevenness of the road. The use environment is much harsher than that of the car. Therefore, when choosing HID, the quality requirements are even more important! There are many HID conversion kits for heavy-duty motorcycles on the market. The quality is uneven. When purchasing the conversion kit, be sure to pay attention to the quality of the bulb and ballast. For example, the high-voltage wire between the ballast and the bulb should not be too long. The starter should also be fixed so as not to affect the safety and quality of the lighting due to vibration.

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The HID Universal Kit for the domestic automotive market is prevalent. HID xenon headlamps have many advantages such as low power consumption, high brightness, long life and high stability. Recently, in addition to being the original equipment of advanced models, they have become a selling point for heavy motorcycles and scooters! In addition to the HID available for motorcycles, there are also high-brightness halogen lamps that easily upgrade the motorcycle's lighting system!

Halogen headlight

Before the HID Xenon bulbs were not available, the motorcycle headlights used halogen bulbs; the halogen bulbs were mainly H1, H2, H3, H7, H4 and double filament H4, as well as "H1+30", "H4+ 30". The high heat generated by a halogen bulb of 100 W or more will accelerate the reflection surface inside the headlight, so the brightness will be slightly reduced after a period of use. The tungsten filament wick of a halogen bulb will also age over time. Remember, never touch the surface of the bulb glass with your hands. Fingerprints can cause damage to the bulb when the bulb temperature rises! High-brightness halogen lamps are also available on the market recently, and regular replacement is a good way to maintain lighting performance.

HID headlights

HID intensity discharge (High Intensity Discharge) headlights, also known as xenon lamps, have gradually replaced existing halogen headlights and become a new technology trend for motorcycle headlights. HID uses the high-intensity discharge between the electrodes to produce bright illumination with twice the brightness of a conventional halogen lamp. The HID bulb has no filament. The current is emitted through a closed quartz tube containing metal halide and helium, so the HID light color Not yellow, but white light that is closer to the sun. HID can efficiently convert electrical energy into light and emit more brightness with less energy. It can emit three times the brightness of the halogen lamp and has a longer life. Never touch the surface of the bulb glass with your hands. In addition, the size of the xenon bulb and the halogen bulb are extremely different, and the angle of the light projection is completely different. The original light projection method is used, and the improvement effect of the visual field is limited, and the installation should be installed according to the manufacturer's suggestion.

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