Complete the yamaha engine on 2 cylinders like a monster

Completed 2-cylinder yamaha engine, there are a lot of people who do not know and have not experienced it, just tell the engine to vibrate, please say that without vibrating it is very quiet, no different from the zin engine, it makes the sound Truly like a large, even smoke-free motorbike that fascinated me.
#ledan #2cylinder #yamaha #diy