harley speedometer/tachometer combo

• 2022-05-05

When driving at medium speed in the top gear of Harley motorcycle, generally between 40-60 country miles, the speedometer is roughly equal to the machine tachometer. The machine speed refers to the number of dynamic revolutions of the crankshaft of the machine per nanosecond, and the speed refers to the driving speed of the whole vehicle at that time. When the gear, cargo and other conditions change, the rate of the tachometer to the speedometer will also change. For illustration, when driving at the same speed in fourth gear and fifth gear, The tachometer of the machine is different. At the same speed on uphill and position roads, the speed is also different. When the throttle is high in low gear, the speed is high and the speed is low, while in high gear, you can get a advanced speed with the same speed.

As long as it is an inductive tachometer, the inductive line can be connected to the input line on the high-voltage package. Start at idle speed, 2000 to second gear, 2500-3000 to third gear and 3000-3500 to fourth gear. You can feel when you can shift gears by listening to the sound of the engine.

Harley Motorcycle speedometer and tachometer are two different things. They can only coincide at a certain speed, not at every speed, and at the same speed, not at all times. For example, at the same speed, different road conditions, gears, loads, acceleration or constant speed will affect the speed and engine speed. For ordinary motorcycles, the speedometer may be "consistent" with the tachometer only when driving at the medium speed of the highest gear, but this "consistency" is not really consistent. The unit of the speedometer is km / h and the unit of the tachometer is kilorpm. For example, there is only a 6 for 60km / h and 6000 rpm, but it is not "consistent".

Generally, the speed of 125 motorcycles is only 60 kilometers per hour at 5500 revolutions in the fifth gear. Shift depends on the speed, not the speed per hour. Generally, about 5000 rpm is the most appropriate shift. The torque of the engine is too low. After changing to high gear, the speed can't be raised for a while, the fuel can't be fully burned, and the carbon deposit is very heavy. If you turn at a low gear and high speed, it is important to waste gasoline. The key is that the speed is too high, which is easy to strain the new machine that is not worn open.