If you want to undertake maintenance to your Yamaha YFM350R then it is usually a good idea to have a Workshop Manual to keep just for a reference in case that you want to know proven methods to take out a specific component including Brake Pads and match it again appropriately.
Yamaha YFM350R Workshop Manuals offers you particular diagnostic information for your vehicle so if something is playing up it helps you work out what the situation is and how to fix it. You can then assess if this can be done by yourself or if ever the job is just too big you can make a booking for your YFM350R in to a local friendly mechanic.
Yamaha YFM350R manual