How can we know how much the motorcycle engine is
General steel body has, such as 110 on the engine marked 107.108.109 (Cm), if it is 150 on the top of the marked hot state, the motorcycle exhaust sound recorded, (2) on the computer With the ability to display the spectrum of audio editing software to open the recording file, and then count, 3) such as 10 seconds exhaust 109, then multiplied by 6 and then multiplied by 2, is your idling. (Multiplied by 2 is because the engine exhaust once turn two laps) 149Cm, so understand it
There are nominal such as 125, unless polished.
General steel body has, such as 110 on the engine marked 107.108.109 (Cm), if it is 150 above the marked 149Cm, so understand it
