I just bought a 1984 Honda VF700S, and it has a few problems. When the bike is idling after some time, there is a horid sound like a clunking/grinding then it disapears. Then, when I go to put the bike into 1st gear it lurches forward like the clutch isnĀ“t fully disengaged. The clutch plates are brand new, the master and slave cylinder seem to look good. Is there a trick to figuring this problem out or has anyone ever had this happen before?