If you have to do maintenance tasks to your Yamaha FZS 600 Fazer then it will always be recommended to have access to a Workshop Manual to keep just for a guide if perhaps you need to know tips on how to take out a particular part such as the Brake Discs and fit it again properly.
Yamaha FZS 600 Fazer Workshop Manuals will give you specified diagnostic details for your automobile therefore if something is faulty it can help you understand what the issue is and the best way to fix it. You can then assess if this can be achieved yourself or in the event the job is simply too big you can actually book your FZS 600 Fazer into a suitable mechanic.
Yamaha FZS 600 Fazer manual