If you choose to conduct maintenance on your own Honda TRX300X then it is always a good idea to possess a Workshop Manual to keep just for reference just in case you want to know ways to take out a particular part for instance the Gearbox and install it again effectively.
Honda TRX300X Workshop Manuals offer you detailed diagnostic facts for the car so if something is not working it will help you work out what the issue is and the way to resolve it. After that you can assess if you can do this by yourself or that the job is simply too big it is possible to make a reservation for your TRX300X in to a suitable car garage.
Honda TRX300X manual