'79 KZ650B3: Vm24s vs CV carbs?

'79 KZ650B3

Currently running VM24s w/accelerator pump

Carbs have had kits put in them, been gone through multiple times, by multiple people; never been able to get them quite right. The first time they were gone through, the guy said one of the carbs was bad, and replaced it with another one, so they're no longer a matched set. I don't know if that has anything to do with it, or not. He also said something about wear on the slides, but he did such a terrible job on them I discounted everything he said, and it's been so long, I've forgotten.

Fitty, my 50.00 parts bike, is an '81 650 LTD. I'd assumed the carbs were also VM24s, but looking closely at them, it is clear they are different. Would that make them CV carbs?

I've read the CV carbs are better, but really expensive to rebuild if the diaphragms are bad.

Assuming the diaphragms are good, and assuming both were working properly, would I see a difference upgrading to the CV carbs? If so, what would the benefits be?

If using pods, the manual slide carbs should be easier to tune.

Good Fortune!

Depends on how large the CV carbs are and wether or not they flow better/setup for better flow.

They may be better of worse just depending on what you can do with them.

Generally a CV carb will have smoother throttle response (not necessarily better), better fuel mileage for sure (when setup correxctly), and they are more tolerant to atmospheric changes like temp/humidity/pressure, etc.

Cheers.

The 81 KZ650-CSR came stock w VM24 carburetors. The 82-83 models had BS32 CV carbs & those bikes have a higher horsepower (pretty sure). The only significant difference between the 81 & 82/83 CSRs is the carburetors. So, if the hp info is correct, that would be one benefit of the CVs.

measure the intake ports on both heads

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H1Vindicator wrote: There was no 81 650-Ltd. I'm pretty sure this was mentioned before in regards to "Fitty".

From the title:

Vehicle Identification Number: JKAKZEH16BA01****

Year: 1981

Make: KAWASAKI

Body Type: RS

Model: KZ650LTD

Date 1st Sold: 04/20/1982

could it be a csr,what month was it built? anything build beginning in the 6th month is normally next model year

wireman wrote: could it be a csr,what month was it built? anything build beginning in the 6th month is normally next model year

The title doesn't list a build month.

And it doesn't really matter to me what it is. The title says it's an LTD, so I called it an LTD.

:laugh: build date should be on sticker on steering head