Happy to hear you got it sealed. I have been fighting oil leaks on my 86 XT600. Luckily the rocker shafts did not leak, everything else did though. After resealing the rocker box and replacing all o-rings (not rocker shafts) the top end was dry, bottom end needed all seals, neutral switch and copper washer, both clutch cover and stator cover needed sealant to dry them up. I had a persistent leak from the stator cover. Finally saw the potted grommet for the stator wires had oil getting around the outside of it then draining down the neutral switch wire. Once I sealed the grommet and small rubber on the neutral switch wire in a channel of the stator cover, then replacing the stator cover gasket a second time and sealing with Yamabond #4 the bottom end is dry. Now I get to do it all over again after rebuilding my 84 top end for low compression. Should be easier second time around....

Good to hear that iam not the only one with oil leaks.. Some people dont care, but i hate oil leaks on engine even if its only a little! Yes everything is always easier when done it before, but still its alot of work doing this job and a little error is enogh and new leak is coming.. Hope you get it fixed now, good luck! And the Yamaha dealer had never heard of Yamabond here..