If it was on the sidestand, it could be that the hot oil was flowing down hill. Were all 4 headers nice and hot?

f you're feeling paranoid, you could pull off the tappit covers, start it up and see if the oil in the head is flowing the way it should.

You know, this used to be a helluva good country. I can't understand what's gone wrong with it. - George Hanson, Easy Rider