The parts manual is CB550F specific - but should be somewhat useful to CB550 owners.
http://www.dotheton.com/downloads/CB500-550_Manual.pdf
http://www.dotheton.com/downloads/CB550_Parts.pdf
http://www.dotheton.com/downloads/CB500-550_Manual.pdf
http://www.dotheton.com/downloads/CB550_Parts.pdf