I’m doing a little of research about the compression ratio since I have done a test drive for the Suzuki Axelo 125 for Kapcai magazine December issue. Suzuki Axelo 125 have higher compression ratio compared to most of other bike in the category of 125cc moped. So, what is compression ratio?
I have a diagram above to show you what are the thing that you need to know before learning about the compression. Engine displacement or engine capacity (110cc or 125cc: this is engine capacity) are calculated from the bore and stroke that related to the TDC (Top Dead Center) and BDC (Bottom Dead Center). Above the TDC, there is small empty space between the piston and the engine head that contain the valve, that is being used for the combustion of the fuel and air. (more…)