idiot does normal oil change. next day oil puddle under the bike. Nice new fresh oil so it is a leak. doing the oil change I only removed the drain bolt at back of engine and the 8mm bolt and pipe connector on the side. Checked the drain bolt it is OK. So I suspect the pipe connector.. Actually I am sure the leak is where this connect meets the side of the engine. (saw little drops of oil there) So I guess there is an o ring or something that is not properly in place? Is the o-ring a consumable that I can easily collect from the yamaha parts? Sorry for such a lame question but I want to fix this fast..