If you want to carry out maintenance tasks for your Yamaha RD 500 LC then it is always recommended to have a Workshop Manual to use as personal reference should you need to know simple methods to take out a specific component for instance the Clutch and install it again in the correct way.
Yamaha RD 500 LC Workshop Manuals provides precise diagnostic guidelines for your car so if something is not working it will help you understand what the problem is and how to fix it. Then you are able to analyse if this can be achieved yourself or if the job is simply too big it is possible to book your RD 500 LC in with a decent car garage.
Yamaha RD 500 LC manual