If you have an overhead hoist or a motor puller, you can rig your bike to securely lean over hard to its right side, almost to to pegs, you can minimize oil loss to about half a cup and I found it actually more comfortable (body wise) to get at the clutch basket with the bike leaned over. The beveled ring that Chad is referring to is also called the wavy washer. Locate that as soon as the cover is removed and on reassembly, place it back on the starter shaft with a dab of grease. I also bought some inexpensive 3 inch long 6mm zinc chromate bolts (4) and hacksawed the heads off to hold the gasket in place and slide the case back on, after you get your case OEM bolts started, spin them out with your fingers, save them for if you ever have to remove the alternator case. Like Chad said, you don't really need the special clutch tool, but if you have access to one, by all means, use it. Just assume you will need a new gasket, you can put a light coat of your favorite gasket goop on the motor side and I put a light coat of anti seize on the case side to increase my chances of being able to reuse the gasket should the case have to come back off unplanned. BTW, if you you go with the H.D. Barnett clutch springs, your lever pull will be noticeably heavier, really a no-brainer job, if you have the book, "You Can Do IT"