Carbs i took off the bike and carbs i ordered differ!! help!!

[infowire]

So i bought re-manufactured carbs from a reputable seller on ebay, and i was putting them on an i noticed the air intake manifold circles are smaller than the carb i took off, the intake air boots are too big... so i am wondering if this is a different engine on this bike or someone put carbs from like a 650 on my cb550sc ??

 The carbs i ordered are: 49mm diameter and the part number on them is VE 62AAUI  1 ? (not sure if that was a one the end it either a one on an i)

 The old carb that i took off is 54mm diameter and part number VE 54AAUI = (this one had an equal sign at the end)




  My engine # is PC09E-2014641

  VIN # on the frame is  jh2pc0907dm014573

  The title says its ccm 550.

 
  I am wondering if the ebay guy sent me wrong carbs or the previous owner changed the motor or maybe just put bigger carbs on ?

[infowire]

Yep just confirmed the bike had 650 carbs on.

[Tryvelcro]

You may have said, but what's wrong with the carbs that were on the bike?

[infowire]

the fuel income tube was broken... and was leaking fuel.

[ExTex]

From the 1983 Honda CB550sc manual (page 24-2),
32mm venturi
VE62A  identifier

1983 GB650SC  (page 4-1)
29.2mm Venturi
VE54A identifier
VE75A identifier for California 1984

I am not sure what the outer diameter has to do with the inner diameter, which ought to be the venturi.
The OD & ID may not correspond.  I am surprised that the 550 uses larger venturi than the 650.

I hope you get it sorted out.  It looks like the PO switched carbs on your bike.

Ride safely,

[infowire]

Yeah one of the PO switched to the bigger carbs.. more power i guess =)

[Tryvelcro]

Can your old one not be fixed?

[infowire]

prob could, but it would cost as much as getting a replacement.

[dtmmil]

Ok, so you pulled the 650 carbs off and put 550 back on? Do you want to sell the 650s?