If you want to execute auto repairs on your Jianshe Knight JS125 28 then it is usually a good plan to possess a Workshop Manual to use as reference if you want to know techniques to remove a particular part for example, the Drive Shaft and match it again in the correct way.
Jianshe Knight JS125 28 Workshop Manuals provide you with unique diagnostic guidelines for your car therefore if something is faulty it will help you understand what the situation is and the best way to correct it. You can then evaluate if this can be achieved yourself or in the event the job is just too big you can actually make a reservation for your Knight JS125 28 in with a suitable garage.
Jianshe Knight JS125 28 manual