I am using Bel Ray Gear saver in the crank case. I am not sure about the clutch kit as it was in a bag when I got the bike in boxes. It was new, just no paperwork for it.  I am using the stock springs. It was like there was no spring return of the clutch lever.  We pulled the bolt holding the lever that the clutch cable connects to moved it a few teeth back for more tension, adjusted it out and it got a little better. It seems to be adjusted as far as it will go and still slips a little.