Author Topic: Best carb choice CB750  (Read 2228 times)

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Offline lucky

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Best carb choice CB750
« on: June 02, 2012, 11:01:48 PM »
Of all of the CB750 stock carbs which are the best?

Are some better than others?

The 69-70's are very easy to work on but what about performance?

Offline spiritof67

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Re: Best carb choice CB750
« Reply #1 on: June 03, 2012, 08:57:09 PM »
It's always a shame when someone asks an interesting question and gets no response. I favor the 1-into-4 '69-'70 carbs for a lot of real-world reasons: they're simple; they suit the SOHC4 well in sizes up to 900cc in real world situations (not just a really great top end while matched with spotty starting, overcomplicated internals, intractable low end, etc...) and all the parts you need are available. Also, the '69-'70 throttle is much quicker and more linear without being extremely quick. But that's just my take. I'm not an expert. Then again, none of them replied...


Spirit


Offline Really?

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Best carb choice CB750
« Reply #2 on: June 03, 2012, 09:40:14 PM »
I wouldn't know either. I have two racks and they are both the same model.
I don't have a motorcycle, sold it ('85 Yamaha Venture Royale).  Haven't had a CB750 for over 40 years.

The Wife's Bike - 750K5
The Kid's Bike - 750K3

Offline 754

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Re: Best carb choice CB750
« Reply #3 on: June 03, 2012, 10:22:12 PM »
Myself I like Webers, but they are not really that available to the average rider, nor as easy to get jetting for, plus aircleaner issues.. The KO's were not slouches so the carbs/airbox had to work pretty good..
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73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline lucky

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Re: Best carb choice CB750
« Reply #4 on: June 12, 2012, 12:27:50 PM »
Thats what I thought. That is why i am putting together a rack of 1969 carbs.
As far as I am concerned they seem to have all of the features I like.

We shall see.

I know the 1974 have been reported as not being so good but I do not know if it was the carbs that were the problem.

I also know that in all the photos of Cycle-X engines, I never see any 77-78 carbs.

Offline lucky

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Re: Best carb choice CB750
« Reply #5 on: June 12, 2012, 12:29:23 PM »
I wouldn't know either. I have two racks and they are both the same model.

And what year were those carbs you are refering to?

Offline Really?

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Re: Best carb choice CB750
« Reply #6 on: June 12, 2012, 12:31:39 PM »
75
I don't have a motorcycle, sold it ('85 Yamaha Venture Royale).  Haven't had a CB750 for over 40 years.

The Wife's Bike - 750K5
The Kid's Bike - 750K3