Two-stroke motorcycle engine works

C90 motorcycle manufacturer  point movement of the piston from the bottom up dead stop, it will complete the intake and compression work process, are reciprocating The first stroke movement. Downward movement of the piston from top dead center TDC, it will complete combustion and expansion (for power) and exhaust work process, it belongs to the second piston reciprocating stroke. Taxi two wheel motorcycle  from the point when the piston is at top dead center stop movement of all closed ventilation and exhaust ports, the exhaust and ventilation process is terminated, the cylinder fresh combustible mixture will begin early in the compression. Vertical motorcycle engine While the piston moves upward, the piston below the crankcase capacity increases, so the crankcase pressure drop and form a vacuum degree, when the degree of vacuum in the crankcase to a certain extent, the reed valves automatically open, the carburetor fog of the combustible mixture is drawn into the crankcase. When the piston continues upward movement, when the top dead center to be close to issuing a spark from the spark plug, which has been compressed combustible mixture ignited. In this case the rapid expansion of burning gases, the combustion chamber temperature and pressure rise sharply, forcing the piston downward movement, i.e. as useful work by the piston rod, a crankshaft. When the piston from the TDC TDC downward movement, the crankcase pressure will increase with decreasing volume, the reed valve will gradually shut down automatically, this time into the crankcase of the combustible mixture starts to be pre-compressed . When the piston down to the exhaust port open, exhaust gases through the exhaust port to the exhaust pipe, silencer into the atmosphere. When the piston then continue down to the ventilation port is enabled, the crankcase is pre-compressed fresh combustible mixture will enter through the ventilation opening of the cylinder, and drive the exhaust gas inside the cylinder further discharge, this process is called scavenging process. This engine will complete a cycle of work.