Topic: 1977 CB550K Stock Air Cleaner Box

[sngreer]

just purchased bike and cover for air cleaner box is missing - ordered what I believe is stock cover for 1977-78 but not sure if it fits my air box and how it would attach - hard to find good diagrams and major variations from year to year. Can anyone provide photos of 1977 stock air box cover and fasteners?

[Powderman]

Looks like everything you have is correct. Only thing that looks missing is the little bracket with the stud on the back end of the housing and the 2 wing nuts to secure the lid..
Check the schematic here:
http://www.cmsnl.com/honda-cb550f2-super-sport-550-four-1977-usa_model468/partslist/F++16.html#results

[sngreer]

Glad to know I'm on the right track - starting to collect the fasteners, hoping more will show up on eBay!

[Powderman]

These are the part numbers your looking for, they are the same on all 550's from 75-78:
17216390000 are the wing nuts
17215390000 are the rear stays.

Both are discontinued but keep doing Google searches and you'll find something eventually. Unless you're doing a full restore, getting universal replacement wing nuts shouldn't be hard. The other part is pretty model specific.