IDK if the bike being discussed id a cable or hydraulic set-up .
# 1 if it is cable operated you will want slack / clearance , whatever in the lever . Make this adjustment cold and recheck after the engine is normal operating temp .
# 2 if it is hydraulic operated YOU BETTER KNOW WHAT YOU ARE DOING . If you "fiddle around" with the wrong stuff , you will create a hydraulic jack . Every time you pull the clutch lever the piston at the clutch release will be extended and not return . You pull the lever more and the piston extends more . This is the way a hydraulic jack works .The difference is there is a bleed screw that allows the pressure to bleed off at the small piston and the jack return to at rest position . If the factory set-up is set correctly , when you pull the lever , the master cylinder will operate the slave cylinder . When you release the master cylinder , the slave cylinder moves back to at rest position and the fluid goes back into the reservoir . If it is misadjusted , the fluid will not go past the piston and keep pressure in the system . This is why NO ONE should be messin' around with the stuff at the lever unless they understand what they are doing . The tech @ the Guzzi dealer , it doesn't sound like he was doing too good.
Whew ! I hope I said what I meant ?