frankinstyn wrote:1) How do I remove the rocker arms?
2) How do I compress the springs?
3) Should I replace the springs and keepers while I have them off?
4) I will need to regap all the valve clearances when I'm done right? This is a solid lifter head?
You remove the rocker arms when you take off the head cover. The CB650 has four main top end pieces from bottom to top... The jugs, the head, the head cover (camshaft cover), and the valve covers. The head cover is held on with 22 small 8mm bolts.
You can the springs off with a trick my local shop mechanic taught me. Take a long 15mm socket, put it on the spring retainer, and hit the socket with a sharp accurate pop from a hammer. Just watch for the keepers, cause they'll go shooting off into your garage if you're not careful. Getting everything back together is going to be difficult if the head is still on the bike, as the only tool that I know of only works with the head removed. But I'm sure you can jerry rig something if you really don't want to take the head off.
I wouldn't worry about replacing the springs or the retainer, or even the keepers. Just be careful not to mix anything up when you take it all apart.
And yes, you'll need to re-gap the valves when you're all done. But now's a good time to learn! I'm not sure what a solid lifter head is, but if you mean it's all one piece (rocker arms attached to the tappets) then no.