universal motorcycle tachometer wiring

• 2022-06-27

If the universal motorcycle is the original instrument, it is only necessary to connect it according to the shape of the plug and the color of the wiring. If it is wrongly plugged, it can not be plugged in. If it is not the instrument of the original car, the meaning and quantity represented by the plug and even the color of the wire may be different. In this way, the maintenance personnel should first judge the power of the wire according to the situation, and then connect the wire according to the situation. It is recommended to go to the local place where the motorcycle is repaired. Those who do not understand the motorcycle circuit may not be connected well. If they are connected incorrectly, they may burn out the fuse and other parts, and even cause a circuit fire.

Generally speaking, when the vehicle starts, the engine speed will reach about 1200-1500 rpm. This is because the low speed will lead to the easy flameout when starting. When the engine condition is normal, the engine speed will drop, generally around 800 rpm; When shifting gears, generally shift gears at about 2000-2500 revolutions. At other times, as long as the engine speed is not too low or too high, do not stay in the red dangerous area for a long time, which will cause damage to engine parts.

No matter how many wires there are, they are mainly 1 positive and 1 negative on the oil meter. The positive 1 must have power (it can be connected from the switch lock). The resistance on the oil float is also 1 in and 1 out, and then it can be connected in series with the two wires on the oil meter. The negative 1 must be grounded after being connected in series.Don't be confused by too many lines. The four wires you mentioned here are the four wires on the oil floating resistance, right? I estimate that one of the yellow or blue lines is a positive level (you can try it separately to see if the pointer of the oil gauge reacts), and most of the black lines are negative levels.

The line of the fourth EFI Motorcycle has been changed. There is no place to connect the engine tachometer line. This speed line is usually connected to ECU, but the specific pin depends on the situation. It may also be connected to a special sensor. It is recommended to go to the after-sales or professional repair shop of the brand to change it.