kz650 h2 - go with vm24ss or Bs32?

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17 Oct 2015 13:52 #694918 by jeffo
kz650 h2 - go with vm24ss or Bs32? was created by jeffo
I got a 82 csr a few weeks ago and it has what I believe to be the Mikuni BS32's on it. I am putting a stock exhaust on this bike and the BS32's came with pods. I have the vm24ss from my 81 csr and I have the airbox and boots for it as well.

So I can go with BS32's or VM24SS's on the 82 CSR....Which way should I go?

Thanks,

Jeff

1981 KZ650H1 CSR

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17 Oct 2015 14:06 #694922 by 650ed
Replied by 650ed on topic kz650 h2 - go with vm24ss or Bs32?
I have VM24SS carbs on my '77 KZ650-C1 and they have always worked great. I'm 99.99% sure the BS32 carbs are the CV type which means they have those diaphragms that can (and do) fail. My vote is for the VM24SS carbs. They work great and simply do not have problems. Ed

1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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  • Denco where did you go?
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17 Oct 2015 15:30 #694931 by gd4now
Replied by gd4now on topic kz650 h2 - go with vm24ss or Bs32?
Everything Ed states is true. All I will add is you can use either if both sets are in good shape and clean. You will certainly need to do so tuning with the CVs and pods, unless they were set up correctly in the past, than you would with the vm carbs and a stock air box.

1977 KZ650 B1
Pods and Denco header


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17 Oct 2015 16:08 #694941 by jeffo
Replied by jeffo on topic kz650 h2 - go with vm24ss or Bs32?
Ok. I think I will go with the vm24's I have a dynojet kit and a k&n filter for the air box as well :) I just did not want to switch it out if there was some obvious benefit of the bs32's. The 82csr is listed at 67 hp vs 60 hp of the 81 csr it is a slightly different engine but I thought the hp difference may be the carbs...

1981 KZ650H1 CSR

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17 Oct 2015 16:28 #694946 by 650ed
Replied by 650ed on topic kz650 h2 - go with vm24ss or Bs32?
I doubt the carbs are solely responsible for the differences in the HP ratings, The earlier B and C models with the VM24SS carbs are rated at 64 hp. Ed

1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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