End with hole goes down I believe, so the pancake end goes above the hole. Just turn it around.
Eh, I dunno, lol. I'm not sure what it does, really. Prevents large debris from getting in the cylinder would be my guess. Just make sure you don't cover the hole, fluid has to flow through there.
If I were at home, I'd pull the cover and get you a pic, sorry.
2009 Aprilia Tuono - Ginger
2001 XR650R BRP (Big Red Pig)
2006 Honda 599 - Ex wrecked it :-D
2007 Honda CB900F (sold)
2006 Honda VTX 1300C (sold)