What kind of oil r most of u running? I've heard all synthetic oils have a much lower sulfer content than dino oil. I think the sulfer content helps to muffle some of the noises some of u speak of. I understand we all like the best for our bikes & synthetic takes more abuse, but if a car can run on cheap dino oil for thousands of miles ... y can't a harley engine do the same? Yes I know these r air cooled & run hotter, but all oils break down after time ... even synthetic. Y not try some cheap dino oil for a bit & see if it helps ... can't hurt anything to try plus oil changes would be cheaper.
I run redline in mine & it has the typical valvetrain noise too, but nothing drastic. I was gonna try some cheap stuff next oil change for the hell of it. I heard about this over at bobistheoilguy.com & forget all the details, but figured I'd give it a try once.