If you want to do auto repairs to your GAS GAS Halley 125 then it is always a good plan to have a Workshop Manual for a guide if you want to know methods to remove a certain component for example, the Brake Pads and install it again in the right way.
GAS GAS Halley 125 Workshop Manuals will give you targeted diagnostic details on your automobile therefore if something is wrong it helps you discover what the problem is and the way to correct it. You can then assess if this can be achieved yourself or if ever the job is just too big it is possible to book your Halley 125 right into a local garage.
GAS GAS Halley 125 manual