Topic: Carb Identification Help

[dramabean]

Hey guys! Working on my 81 CB650c. Looking to run pods on it for a overall cafe look. I know that jetting CV carbs is possible but a huge pain in the ass so I’ve been looking for a set of slide carbs to run.

Found a gentlemen to sell me some but when he sent me pictures they look THE SAME as my own carbs? Is he mistaken that they are slide carbs? Or are my carbs not CV carbs?

His:


My carbs:






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[754]

Check the number , and check the spacing, 2 types of spacing on a 650.
 CV carbs have slides, but they are  vacumn operated, vs being controlled by linkage..

[dramabean]

When I pull the throttle linkage, it opens up a butterfly valve in the back of the body. It does not pull the slide/needle open. I assume it’s a vacuum set up.


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[754]

Yes CV  carb, but it does have a slide too... probably what seller is talking about..

[Motorcycle jones]

All carbs have slides.
The slides are controlled by pulling on a wire OR by vacuum and spring return.
The reason vacuum operated slides were developed is to compensate for altitude at different
geographic locations. That way Manufacturers did not have to have different jetting in places like Colorado.

[Don R]

 Those have been painted which will be a pain to clean.

[jonda500]

My lawnmowers carb doesn't have a slide, just a simple butterfly valve
John

[754]

Yeah, a lot of carbs dont have slides, but the 70s and 80s bikes usually did..