If you choose to conduct fixes to your Suzuki KingQuad 400AS then it is usually a good plan to have a Workshop Manual to use as reference if you need to know how to take off a particular component like the Dashboard and fit it again accordingly.
Suzuki KingQuad 400AS Workshop Manuals provide you with certain diagnostic info for the vehicle therefore if something is not working it helps you figure out what the situation is and how to repair it. You will be able to evaluate if this can be achieved by yourself or if the job is just too big you can still book your KingQuad 400AS in with a decent car garage.
Suzuki KingQuad 400AS manual