If you want to execute auto repairs on your own Titan Bobber then it is always a good plan to own a Workshop Manual to use as personal reference in case you need to know tips on how to take off a particular component for example Gearbox and fit it again appropriately.
Titan Bobber Workshop Manuals can offer you certain diagnostic guides for your car therefore if something is playing up it will help you determine what the issue is and tips on how to resolve it. You will be able to assess if you can do this yourself or that the job is too big you could book your Bobber in to a decent car garage.
Titan Bobber manual