Jinan Qingqi Suzuki u 1 1 scooter noise

1. You can try to replace the muffler of the exhaust pipe. If the noise is high due to poor oil quality, the oil should be changed in time. Not changing the oil for a long time will also cause the engine sound to become louder.

2. To solve the problem of high noise, the first thing that needs to be eliminated is the noise generated by accessories, such as air compressor and power take-off. The noise generated by these parts is not the noise generated by the engine. If the noise is caused by these parts, the noise can be reduced by removing the accessory drive belt.

3. If the generated noise changes with the crankshaft speed, it may be related to the crankshaft, connecting rod, piston and piston pin, and it is also necessary to check the transmission parts of the valve.