Adjust the clutch properly and make sure that the adjusting bolt has about a quarter of a turn free stroke. Bleed the oilline to the pump. It is really not necessary to bleed the oilpipes to the cylinders. I always use a 1:30 fuel/oil mix in the first tankfill. After a few hundred meters you have good lubrication, no problem.

Yamaha DS5 clutch adjusting