If you need to conduct maintenance tasks to your Yamaha FZ 750 Genesis then it is always a good plan to own a Workshop Manual for reference if perhaps you need to know simple methods to remove a particular part for instance the Exhaust and fit it again in the correct way.
Yamaha FZ 750 Genesis Workshop Manuals provides certain diagnostic facts for the vehicle therefore if something is not working it helps you identify what the situation is and how to resolve it. You will be able to evaluate if this can be done by yourself or if ever the job is simply too big you are able to book your FZ 750 Genesis in to a local car garage.
Yamaha FZ 750 Genesis manual