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  1. #1
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    Default 70's cb550 carbs

    I have a set of rebuilt carbs for 77-78 cb550k and had a guy ask if they would work on a 74, I couldnt find anything definitive so though I'd ask here. Any help is really appreciated!

  2. #2
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    "The Honda CB500K / CB550K use four individual Keihin 022A carburetors (one for each cylinder) connected to a common mounting plate. They are a bank of all mechanical round slide carburetors with a dual fuel inlet and are controlled by a dual throttle cable set up (pull and push cable).
    Note the CB550K3 / K4 (1977-1978) uses a uniquely different model of Keihin carburetors which only appeared on this late version of the bike, which have their own rebuild kit and throttle cables..."
    and from this site I see the K3 and K4 used different intake manifolds:
    https://www.common-motor.com/honda-550-fuel-system

    Topic: 1977 CB550 and 1974 CB550F Interchangeability?
    http://forums.sohc4.net/index.php?topic=163117.0

    The SOHC/4 Technical Documentation Library
    CB550 1974-1978
    http://manuals.sohc4.net/cb550/

    and since this is Chopcult, need some photos of cb550 chopper stuff:
    Click image for larger version. 

Name:	honda cb550, long girder, hd softail.jpg 
Views:	2 
Size:	107.5 KB 
ID:	109085
    Click image for larger version. 

Name:	Amen 500 rigid frame, original ad, 1974 catalog.jpg 
Views:	0 
Size:	159.5 KB 
ID:	109086

  3. #3
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    Default

    Quote Originally Posted by TriNortchopz View Post
    "The Honda CB500K / CB550K use four individual Keihin 022A carburetors (one for each cylinder) connected to a common mounting plate. They are a bank of all mechanical round slide carburetors with a dual fuel inlet and are controlled by a dual throttle cable set up (pull and push cable).
    Note the CB550K3 / K4 (1977-1978) uses a uniquely different model of Keihin carburetors which only appeared on this late version of the bike, which have their own rebuild kit and throttle cables..."
    and from this site I see the K3 and K4 used different intake manifolds:
    https://www.common-motor.com/honda-550-fuel-system

    Topic: 1977 CB550 and 1974 CB550F Interchangeability?
    http://forums.sohc4.net/index.php?topic=163117.0

    The SOHC/4 Technical Documentation Library
    CB550 1974-1978
    http://manuals.sohc4.net/cb550/

    and since this is Chopcult, need some photos of cb550 chopper stuff:
    Click image for larger version. 

Name:	honda cb550, long girder, hd softail.jpg 
Views:	2 
Size:	107.5 KB 
ID:	109085
    Click image for larger version. 

Name:	Amen 500 rigid frame, original ad, 1974 catalog.jpg 
Views:	0 
Size:	159.5 KB 
ID:	109086
    Thanks for the info man!

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