motorcycle speedometer tachometer combo

• 2022-04-21

The tachometer of motorcycle is used when adjusting idle speed. After the car starts, when the speed reaches 20 yards and the speed is 1500-2000, change to second gear. When the speed reaches more than 2000, change to third gear, which is also equivalent to 30 yards. Shift into 4th gear when the vehicle speed reaches 50 yards. Given the power demand, the higher the conversion efficiency of the power system, the lower the fuel consumption at that time, so we only need to look at the efficiency of the power system.

The mechanical tachometer uses a soft steel wire, one end is connected to the engine and the other end is connected under the instrument. The soft steel wire is driven to rotate by the power of the engine, and then there is a circular magnet with a bowl shaped iron plate on it. On the iron plate, the faster the pointer rotates, the faster the magnetic force takes the iron bowl. The principle of the mechanical speed indicator is the same as that of the odometer on the left. The electronic tachometer uses the electromagnetic principle. A piece of iron is connected with a pointer, and the outside is surrounded by an electromagnetic iron wire group. The electromagnet has three wires: the positive pole, the negative pole and the high-voltage incoming wire, that is, the ignition wire of the engine. Every time the wire goes out, the engine will ignite once, that is, turn twice. According to this principle, the electromagnet will be magnetized once every time it is powered on. The faster it rotates, the stronger the magnetic force, and the pointer will go up.

Suzuki King motorcycle (GS125): although it is 125cc, it is by no means worse than 150 horsepower. Except for the difference between single person riding and manned riding at ultra-low speed, there will be no difference at 30 kilometers per hour. During normal driving, shift to gear 5. At this time, the angle between the speedometer and the tachometer is the same, so the engine speed should depend on how fast you think the speed per hour is normal. For Suzuki king, if the speed is within 80km per hour, it will not have a great impact on the engine. How fast each gear is equipped with: just listen to the sound of the engine. The sound is the speed. When the sound is loud, if the car can't run, it needs to increase the gear. When it reaches gear 5, the sound is stable.