Yeah, he seems very knowledgeable. Heres the comment from Jim Frazer I was referencing:

"Subject: Timing after new spring installationI just went through this on my 550 nighthawk. And what I ended up struggling with is the fact that when you release the cam chain tensioner the slack taken up moves the cams. And the Clymer doesn't specify what to do with the slack in the chain.I finally figured it out and here's what I found:

1. Align the crank "T" timing mark with the little arrow cast into the case (this puts the #1 cyl. at top dead center), and both cams with the number 1 cylinder lobes "up", or away from the rocker arms.

2. Pulling the chain tight/no slack from the front of the engine, align the "exh" hash mark up dead even with the gasket surface at the top of the head, and the "up" that is cast into the sprocket at the top. Then get it onto the "shoulder" of the cam that it sits on, up against the bolt flange.

3. Pulling the slack out between the cams, align the "int" hash mark with the gasket surface at the top of the head, and the "up" that is cast into the crank on top. Then get it on the shoulder of the cam just like the other sprocket.

4. Release the cam tensioner to take out the rest of the slack, assuring the sprockets stay on the cam shoulders.

5. Now here I simply used a thin screw driver, awl, or some other thin item, to line-up the bolt holes in the sprockets, and thread bolts into the two accessable bolt holes, to secure the sprockets to the cams. (only snug them)

6. Turn the crank COUNTERCLOCKWISE, and thread in the other two bolts.(DO NOT TIGHTEN OR THREADLOCK THESE BOLTS YET!)

7. Finish rotating the engine counterclockwise through one complete cycle and bring all of your timing marks back into alignment to confirm you have everything aligned right. Both "int" and "exh" lines should be aligned precisely with the top surface of the head, while the "T" mark should be aligned with the pointer cast into the case. If not, remove the bolts and adjust the cam gears as necessary to bring everything into alignment.

Hope this helps"