If you wish to do repairs on your own Yamaha CA50M then it will always be a great idea to possess a Workshop Manual for personal reference in case that you want to know how to take out a certain component much like the Gearbox and install it again properly.
Yamaha CA50M Workshop Manuals will give you detailed diagnostic guides with regards to your vehicle therefore if something is playing up it will help you identify what the problem is and easy methods to make it better. Then you are able to determine if this can be achieved yourself or in the event the job is too big you can still make a booking for your CA50M right into a decent car garage.
Yamaha CA50M manual