If you wish to perform adjustments on your Kymco 125 Pulsar CK then it is usually recommended to own a Workshop Manual for reference should you want to know the best ways to strip off a specific part for example the Wheel Bearing and fit it again effectively.
Kymco 125 Pulsar CK Workshop Manuals can provide detailed diagnostic info with regards to your car therefore if something is wrong it can help you ascertain what the issue is and how you can make it better. You can then determine if this can be done yourself or if ever the job is too big you can actually book your 125 Pulsar CK into a local friendly mechanic.
Kymco 125 Pulsar CK manual