If you wish to do adjustments on your Moto Guzzi V 1000 Le Mans IV then it will always be recommended to have a Workshop Manual to use as a guide if you need to know ways to strip off a certain part for instance the Drive Shaft and fit it again adequately.
Moto Guzzi V 1000 Le Mans IV Workshop Manuals can provide precise diagnostic guidelines for the automobile therefore if something is wrong it will help you identify what the situation is and methods to correct it. After that you can determine if this can be done on your own or if the job is too big you could make a reservation for your V 1000 Le Mans IV in to a nearby repair garage.
Moto Guzzi V 1000 Le Mans IV manual