After you take the cam cover off, if I remember correctly, you have to remove the valve cover, rocker arms, and pushrods. Then the cam slides out, move it to the correct position and push it back in. For my Magnum 52 RFS, the cam gear was 1 tooth off. I pulled the cam out, turned it 1 gear, and then pushed it back in.

Then you can put the pushrods back in, screw the rocker arms back on, and finally the valve cover. I think that if you only unbolt the rocker arms without touching the gap adjustment screws, you won't have to do the gap adjustments. But in my case, I had been running-in the engine and the manual calls for a gap readjustment after running the engine for the first few hours. My engine needed the readjustment after those few hours of initial use.

This exercise really helped me understand the 4-strokes better and build up some confidence in them.