Hey Ya'll what weight of oil do these bad boys take? Just got the bike and have no owners manual, also, my local shop is a blast to call, never know when the guys guessing just so he don't have to look it up. Also any tricks to changing oil? drained the tank and motor, changed the filter, need to run it briefly to dbl. check full? How much does it hold? And yes, I do have a manual ordered so I can stop asking these stupid questions. Thanks in advance, Rick Modlin.