Topic: cb 550 carb help

[klinger44]

The manifolds i have have the little screw on the botton for syncing them, that is the one you need for 69a s , i found out that the intakes are all the same, same angles and length and stud holes, only thing different is the hole for syncing, what i had to do what mount the manifolds first then put the right out of the microwave couplers on loosely , then the carbs, and still it was hard, but then went , then i tightened all the clamps down

[TwoTired]

The PD carbs are longer than the type ones.  So, those couplers are shorter.

Type one carbs (069a) use longer rubber coupler tubes.  They are a different diameter, as well.

[klinger44]

To be clear the 69a's did go on but with a fight. and the space between the carbs on the 2 different model carbs is a good bit. over all the 69a's are 1/4 skinnier than the pds carbs & so none of the carbs line up really, also the diameter is different on the manifolds & both carbs, so the fit is even tighter than it would be

[TwoTired]

Below is a pic of the two couplers.  The PD type is above, the 069a type is below.

The second pic is one of my 78 CB550K with the PD carbs installed.  Resting on top of the frame is an air box and couplers used on 069A carbs.

[klinger44]

So anyone know what throttle cables i need? Cause the dealer is telling me they are the same for a 77cb550 k & f, though one has the 69a and the other not. neither of my cables will work. What to do now ?

[klinger44]

also the 69a carb has 2 fuel lines but my petcock only has 1 port, do i tee them together or get a petcock with 2 ports? my 76has 2 ports on it, but no 77s do ?

[TwoTired]

You can find the Honda parts numbers you need here:
http://www.westernhillshondayamaha.com/fiche_section_detail.asp?section=2036246&category=Motorcycles&make=HONDA&year=1977&fveh=123311

You can Google search with the part number to give multiple sources to choose from.

You can use the same site to search part numbers for the K model, compare the numbers and learn if you need just one cable or both.

Looks like you only need the A cable  17910-341-000   If you take that number to your dealer, he could order it for you.

My 77 Cb550F has a single outlet fuel valve and splits the the single to two lines with a Tee.

[klinger44]

thanks and thanks. The dealer i just checked says the pull on is different but the push is the same or so that what they tell me ? but to me there both too long for me to use , and i like the pics with the comparison, i learned it the hard way. but im using the old ones cause their shorter and had more play in them so i could actually get them on.

[klinger44]

ill just get the A cable first and see.

[bollingball]

You could just make your own.
Ken