Excuse me, what is the reason for the loud noise of motorcycle engine?

First, determine whether there is any other abnormal noise or whether it is the same as the normal working sound, but the volume is getting louder and louder.

If there are no other abnormal noises, there are several common possibilities:

1, the engine, air intake and throttle have more carbon deposits.

2. In addition, as the maintenance cycle approaches, engine noise will increase due to weak oil wear.

3. You can also check the valve clearance and tightness of the valve mechanism. After adjustment in the right way, the problem of piston knocking (clanging) can be solved: the knocking is loud when the engine temperature is low, and it becomes smaller or stops with the increase of temperature. The reason may be the lateral knocking of the piston.

4. There are abnormal noises when some parts fail, such as air leakage of belt tensioner, high-pressure bag, water pump, air inlet pipe or exhaust pipe, etc.

Therefore, if you feel that the engine is getting louder and louder, you'd better go to a professional repair shop for repair. In the case of uncertainty, we should blindly draw conclusions so as not to cause unnecessary losses and waste time and energy.

Motorcycles consume less fuel than cars, are not affected by traffic facilities, and have a small parking area;

When the road is blocked, the motorcycle has good maneuverability.

Motorcycles have a wide range of social influences. In Japan and Europe, motorcycles have become an indispensable means of transportation for people to travel, go to school and shop.

The fuel consumption of motorcycles is less than 1/3 of that of automobiles with a displacement of 0.6 L, and the CO and HC in exhaust emissions are 38%-80% lower than those of automobiles, occupying less road space and parking area than automobiles.

According to statistics, there are only 1.3 passengers per car in Japan and Europe. In this case, if one out of every five cars is replaced by a motorcycle, the average speed can be increased from 13.7 km to more than 22 km, which not only improves efficiency, but also greatly reduces pollution and saves fuel consumption by 42%.