1. It is featured by four-stroke, four-valve, overhead camshaft, water-cooled gasoline engine, medium and low speed and high power, large torque, good acceleration performance and strong gradeability.
2. Pressure reducing valve with advanced structure is used. Thus, it is easy to start; the balance shaft and silent timing chain are equipped; in this way, the engine operates smoothly. Transmission ratio is optimized and the piston and cylinder load is reduced.