Traditional Culture Encyclopedia - The 24 Solar Terms - The engine sound of the newly bought curved beam motorcycle suddenly became louder. Now I only run 380 kilometers. Is it caused by speed when the normal driving speed is between 50 km 50k m-60 kmz?

The engine sound of the newly bought curved beam motorcycle suddenly became louder. Now I only run 380 kilometers. Is it caused by speed when the normal driving speed is between 50 km 50k m-60 kmz?

This is caused by speed. Generally speaking, the speed of a new car should not exceed 30 in the first100km, 40 in the first 300km and 50 in the first1500km. . . Because there are many burrs in the new engine gear, it is necessary to change the oil regularly to remove those burrs. . . If neglected, driving a new car under heavy load will seriously shorten the life of the engine. . . Also, did you change the oil on time? Is the oil changed qualified?