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Hi guys, I'm going to change the oil and replace the drain bolt and washer. The washer it has some kind of step in one side, and the other side is flat. (photos). What side of the washer is facing the cranckcase cover? Thanks a lot!

Okay, it seems that everyone and their mom's modded their stock exhaust, but NO ONE WANTED TO POST PICS. So here it is. The stock exhaust mod how-to, with pictures. Done the hard way. I will not be going into deep detail (such as what socket size to use), because frankly this is a pretty...