Modifikasi KLEP Standar Jadi RACING II Ini Solusi JiTU

In this video, I'll discuss modified standard valves, which are often installed on motorcycle engines, including the Satria FU, Beat Carburetor, Jupiter Z, Mio, and others. We install modified standard valves to improve engine performance and speed. However, racing or modified valves have advantages, but they also have disadvantages. What are their advantages and disadvantages?