If you want to do adjustments to your Yamaha FZ 150 N then it is usually a good plan to have a Workshop Manual for reference should you want to know techniques to remove a specific component much like the Brake Pads and install it again accurately.
Yamaha FZ 150 N Workshop Manuals can provide distinct diagnostic information for the automobile so if something is wrong it helps you figure out what the issue is and tips on how to fix it. You will be able to decide if you can do this on your own or that the job is just too big you can actually book your FZ 150 N in with a local garage.
Yamaha FZ 150 N manual