what kind of oil did you put in- REP-SOL brand oil is a great oil for bikes with wet clutchs, i have ran it for years with no problems, recently just bought another 84 sabre 700, the guy had changed the oil with castrol and it felt like the clutch was slipping, that went away when i changed over to the rep-sol. if you bled the cllutch i would go back and bleed it more- it take a lot of bleeding it to get all the air out and the slave cylinder to work, seriously- i have done this in the past, and when i thought i had it bled enough, i had a mechanic tell me to keep bleeding it and bleeding it- and finally got the air out and the pressure up on it. and it worked fine- not saying in any way that will fix your problem, just a suggestion to try before spending any big money on it- it may solve your problem.