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Author Topic: Will CB750 K7/K8 carbs fit on a earlier K?  (Read 1146 times)

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Offline billdramp

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Will CB750 K7/K8 carbs fit on a earlier K?
« on: October 17, 2006, 02:42:06 PM »
I'm sure someone has done this... and there is probably a thread about it, but I couldn't find it.

Can you interchange these carbs, and is there any advantage if so? Pro's / Cons?

Thanks in advance!

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1975 CB750K (daily rider), 1974 CB550K (sold), 1974 CL350 (sold), 1973 CL350 (when I get around to it...), 1971 CB750 (in boxes), 1978 CB750F in boxes, 1976 CB750F SUPERSPORT (sold), 1975 CB400 FOUR (crashed), 1976 400 FOUR (work in progress), 1977 cb400f

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Offline miles nowhere

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Re: Will CB750 K7/K8 carbs fit on a earlier K?
« Reply #1 on: October 17, 2006, 02:51:16 PM »
pro-accelerater diaphram

con-pressed in slow jets, less adjustability
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Offline Tim2005

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Re: Will CB750 K7/K8 carbs fit on a earlier K?
« Reply #2 on: October 17, 2006, 03:10:48 PM »
I've been wondering about doing this too... you need the later type rubbers for attaching the carbs to the head, not sure about the airbox side though. Also you need the later throttle cables & the choke cable etc too.

I'm also wondering if it improves (smoothens and quickens)  the throttle action, and whether the jetting takes much sorting out.
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