If you choose to do repairs on your own Yamaha TX 750 then it will always be a good plan to possess a Workshop Manual to use as a reference in case that you want to know ways to take off a particular part for example Gearbox and install it again perfectly.
Yamaha TX 750 Workshop Manuals provide you with precise diagnostic information for your vehicle so if something is not working it will help you ascertain what the issue is and methods to resolve it. After that you can determine if this can be achieved by yourself or if the job is just too big it is possible to book your TX 750 in to a nearby garage.
Yamaha TX 750 manual