Motorcycle electric starters are all positive, while horns are positive and negative. First, let's talk about electric start. Some motorcycles under the principle of electric start: for example, men's cars with gears need to pinch the clutch to start, and most scooters need to step on the brakes to start. However, some Haojue and Qianjiang motorcycles need to activate the flameout switch to flameout.
How is this done? Huafeng will give you a detailed introduction: First of all, you must know that most of the motorycycle control cables in motorcycles have positive and negative poles, and the positive and negative poles are connected to make the electrical work. The same principle applies to the electric start relay. First, the motorcycle needs to start the clutch, and there is a switch where the clutch is located.
One end is connected to the negative pole and the other end is connected to the negative pole of the relay. Once you start the clutch controlled by the motorbike clutch cable, the negative pole of the relay will be connected to it. Then press the electric start button, the positive pole of the relay is energized, the negative pole is energized, and the relay starts to operate. The principle of electric starter scooter is similar, the negative pole is always there. In addition, the wire tube of the electric start button is connected to the relay, and one end is connected to the brake light control line. Under normal circumstances, the brake light is not energized, but when we start the brake, the brake light wire will be positively charged. After that, when we press the electric start button, the positive pole of the relay will also be energized, so that the relay will start to work.
The common Qianjiang motorcycles on domestic roads have the same principle of flameout control switch. Qianjiang motorcycles basically use DC electric fire and use the electricity charged in the battery. A wire tube passes through the blockage from the battery, and then turns off to the left, connecting the igniter under the switch. Therefore, once any link is disconnected, it will cause flameout, and the flameout sequence of the electric door lock is higher than that of the flameout switch. So it is the same principle. Through the flameout switch, the lower igniter is connected to one wire, and the other wire is connected to the electric start button. So, this is why: when the flameout switch is off, pressing the electric start button does not respond.
Let us pay attention to the motorcycle horn again. Why is the horn negative? That's because the speakers are also connected with positive and negative poles. In the control system of the horn, one of the wires is the electric door lock, which derives the positive electricity, as long as the electric door lock is turned on, the positive electricity will also be available. Then there is a negative pole. The control wire of the horn button is connected to the horn. The color of this wire is usually light green. And the other one that controls the horn button is the negative pole. When we press it, it will have a negative pole, so the horn will sound. Most motorcycles, even yamaha control cables, only need to pass the two wires and colors of the horn. This is a very practical and simple way to determine whether the horn button controls the positive or negative pole.
Summary: In general, Motorycycle control cables control the negative pole, that is, a black wire and a light green wire. If the speaker is to control the positive pole, it is a green wire and a light green wire. The reason why the switch controls the negative pole is because if electricity can pass through the horn during operation, the voltage and current will be reduced and it is not easy to burn the button. In fact, they have similar principles and are not very different.
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