Suzuki uu 125 scooter accelerates as soon as the fan rings.

Suzuki Youyou UU 125 scooter, the engine cooling fan will make noise when idling, but it will not make noise as long as it accelerates. This situation is either not the sound made by the fan, or there is nothing wrong with it and the sound is normal, otherwise the sound should be more obvious when the throttle and engine speed are high.

UU 125 is a scooter produced by Jinan Qingqi Suzuki, which uses a single cylinder forced air-cooled four-stroke single overhead camshaft engine. Forced air cooling is to install a cooling fan on the magneto rotor of the engine. After the engine moves together, it will rotate with the engine and blow air to cool the engine. Because the scooter's engine is wrapped in exterior decoration, unlike those exposed to the outside, it can be cooled by the oncoming wind when driving, so we can't adopt this natural air cooling method, and we must think of other ways, which are limited by cost and other considerations. For example, this kind of fan is the first choice for low-cost scooters with small displacement, and it is also the heat dissipation method for most scooters with small displacement.

The forced air cooling structure of scooter is very simple. It just installs a plastic fan blade on the magneto rotor, fixes the fan on the magneto rotor with 2-4 screws, and blows air to the engine to dissipate heat with the cooperation of the fan cover. It basically won't make noise, as long as you check that it and the fan cover are not damaged and the fixing screws of the fan are not loose, it will be fine. And if it or other parts of the engine are faulty, it should generally be that the louder the throttle is, the louder it will be, and it will not be silent after the throttle is increased.

There will be some noise when the motorcycle engine is running. Some are caused by faults, and some are benign and normal. Although it cannot be completely eliminated, it will not cause faults or continue to expand. If so, don't worry. If you are not at ease, you can also go to after-sales or other motorcycle repair shops for inspection and consultation. After all, it is not easy to accurately judge the sound problem without hearing it.