Topic: help me I.D these carbs.....cb550's

[damagedduck]

i have 2 racks one is for my cb550,the other?set # 1 is for my cb550 the #2 set is a mystery,
http://s946.photobucket.com/albums/ad310/damagedduck/old%20choppers/

[moham]

bowl shape looks like the later model 550/750 carbs ie 77-78 but spacing and and casting marks could tell us more...

[damagedduck]

i know their not for 750's,got enough of those.rack #2 has #'s PD 46caph..set#1 has no numbers
they both have 1 1/4 opening to the engine,&all 4 have a  10 1/4 outside-2-outside measurememt of spickots/to the engine side,
i gotta go & pick up more cb stuff,i'll get better info in awhile=chuck

[TwoTired]

The PD 46c  carbs are from a 78 CB550K
The other carbs set looks like the earlier style, but could be from a CB500 or Cb550.
For these carbs, look for a stamping on each carb body mount flange, top right (as they would be mounted on the bike).
Known numbers are:
627B
022A
087A
069A

[damagedduck]

ok i found 022a very lightly stamped on the #4

side so their 550's?so is there a differace in carb kits?
thanks for all help guy,this is my first non-sohc 750 honda,

[TwoTired]

022A was used on 74-75 CB550K.  Some 76 Cb550Ks may have also had these.  But, 76 CB550K often had 087A carbs.

The only difference is what internal parts were installed and how they were adjusted.