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Author Topic: Carbs 657A vs 069A  (Read 876 times)

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Offline greenjeans

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Carbs 657A vs 069A
« on: December 09, 2008, 05:31:40 AM »
I have a 1972 CB750K

My mish-mash carbs are stamped 657A & B   All needles and jets are the same.   However a few of the jet holders/posts are on the verge of cracking

I can get some 069A carbs from Cleveland.    Anybody know if these particular carbs would work ?   I can always take the jets & needles out of
my old carbs if that's the only difference.   Hopefully this would work - anybody know for sure ?
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Offline Deltarider

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Re: Carbs 657A vs 069A
« Reply #1 on: December 09, 2008, 07:54:47 AM »
Are you aware that 069A carbs are 550F carbs?
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Offline greenjeans

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Re: Carbs 657A vs 069A
« Reply #2 on: December 09, 2008, 08:39:18 AM »
I am now.   Thanks
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Offline Clyde

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Re: Carbs 657A vs 069A
« Reply #3 on: December 09, 2008, 05:12:39 PM »
I think that the later 750F/F1 carbs are 064A. These are the same but may need you to change some jets
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SOHC4 #1909
Honda CB750 K0(original and unrestored), K1(in pieces), K2(restored), F1(restored), 76 750a (awaiting restoration), 1966 Honda CB72
Suzuki GT750 1972 (restored), Kawasaki Z1 1973 (restored)
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