If you wish to conduct adjustments to your Yamaha FZ 750 Genesis then it is usually a good plan to own a Workshop Manual to use as reference in case that you need to know simple methods to take out a specific part for example Brake Pads and install it again correctly.
Yamaha FZ 750 Genesis Workshop Manuals will provide you with targeted diagnostic information with regards to your vehicle so if something is faulty it will help you find out what the situation is and how to correct it. Then you are able to evaluate if this can be done on your own or if the job is too big you can actually book your FZ 750 Genesis right into a decent mechanic.
Yamaha FZ 750 Genesis manual