Changchun Suzuki 125-7 Motorcycle Problem

Try to see if there is any vibration after exceeding 50 km/h. I think every motorcycle has a * * * impact point ... as long as it exceeds it, it will be fine ... Maybe the clutch plates are stuck too tightly ... It is recommended to clean them with engine cleaner when changing the oil (it is best not to add cheap oil. . Or inferior engine oil)