If you want to conduct adjustments on your own Suzuki ST 250 Etype then it is always a great idea to have access to a Workshop Manual to keep just for a reference if perhaps you want to know the best ways to strip off a certain component for example, the Door and fit it again accordingly.
Suzuki ST 250 Etype Workshop Manuals can provide specified diagnostic guidelines with regards to your vehicle so if something is faulty it helps you understand what the situation is and tips on how to repair it. You can then decide if you can do this on your own or in the event the job is simply too big you are able to book your ST 250 Etype right into a local friendly mechanic.
Suzuki ST 250 Etype manual