If you want to undertake fixes on your own Suzuki KingQuad 400AS then it is always recommended to have access to a Workshop Manual to use as a reference in the event that you want to know easy methods to remove a particular part including Drive Shaft and fit it again the right way.
Suzuki KingQuad 400AS Workshop Manuals will give exact diagnostic guidelines with regards to your car or truck therefore if something is not working it can help you understand what the situation is and the best way to resolve it. You can then determine if this can be done on your own or in the event the job is too big you are able to make a booking for your KingQuad 400AS into a trusted car garage.
Suzuki KingQuad 400AS manual