How do you adjust cam chain on cb550?

I know you are looking for a cb550 but I have adjustment for a cb650 It might be the same. Chain should be tightened every 4000 miles (6400 km). 1. Place the bike on the centerstand. 2. Turn the ignition switch to the off position and shift the transmission into neutral. 3. Remove 4 spark plugs. This will make it easier to turn the engine over with a wrench. 4. Remove the ignition cover. 5. Loosen the camshaft chain tensioner lock nut. Note: The camshaft chain tensioner will automatically adjust itself when the locknut loosens and the engine rotated. 6. Place a fifteen sixteenth inch wrench on the outer hex spacer of the ignition unit. Slowly rotate the crankshaft clockwise when looking at the ignition unit while tightening the camshaft chain tensioner locknut. Rotate the crankshaft at least four to five times while tightening the locknut. 7. Reinstall the ignition cover and spark plugs.