If you want to perform maintenance on your own Bimota Mantra then it is always recommended to have a Workshop Manual to keep just for a guide in the event you want to know simple methods to take off a certain component like the Clutch and fit it again efficiently.
Bimota Mantra Workshop Manuals can offer you exact diagnostic info for the car therefore if something is playing up it can help you figure out what the situation is and how you can fix it. After that you can assess if this can be done on your own or in case the job is too big you can actually make a reservation for your Mantra in to a local friendly mechanic.
Bimota Mantra manual