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OpiniInsp on carb

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Old 07-11-2018, 01:08 PM
Fblo1690
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Default OpiniInsp on carb

i know that this has been beaten to death...My Mikuni 42 is worn out. Prolly over 10 years old. Been kind of hard to tune. It was recommended to me to buy a new one and save some headaches.

I found a good deal on a Dales Killer CV carb. Significantly cheaper than a new Mikuni 42. My bike has pipes and exhaust and I donít really plan on doin much more, maybe a mild cam.

What would yall do? New Mikuni or almost new CV for less.
 
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Old 07-11-2018, 01:31 PM
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Unless you are pumping a LOT of air (big inches) there is absolutely no reason for a Mikuni
With a couple cheap upgrades,- your CV will do just as well and even an idiots idiot can make it work.
I use one on a pretty hopped up EVO and still have not had to switch to a mik.
Think of it as this way,- a carb is a venturi and air going dwn the throat sucks the gas out of the bowl VIA a jet (venturi effect)
Until you reach a plateau where the carb is choking the engine, there is no need for a bigger one.
Then how big can you go?
Port velocity size etc is still relegated into what can be done with a head and valve configuration.
Most the porters have been dwn sizing the ports for street heads.
It is all a compromise.

Spend your money on an AFR gauge .
I travel long distances mine and love the simple
A CV is as simple as it gets.
I will say again- You just can't bolt in horsepower.
All the carbs in the world mean nothing without reworking the everything else.
Combustion chambers, larger valves, cams, re ported, high CR etc etc etc
 
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Old 07-11-2018, 01:46 PM
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I just switched mine back to my stock CV carb that thankfully I didn’t get rid of when I put the Mikuni on some years ago. I just could never get the Mikuni to work as I desired and the last straw was beginning this year it would not have any power under a load. I put the CV back on after it was sitting in a box for years and so far no problems at all! If you do go with the CV, remember you’ll need a manifold for it also.
 
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Old 07-11-2018, 01:48 PM
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If you are going cam and pipes i do highly recommend the AFR unit.
Or you are only guessing
 
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Old 07-11-2018, 03:52 PM
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Originally Posted by Fblo1690 View Post
i know that this has been beaten to death...My Mikuni 42 is worn out. Prolly over 10 years old. Been kind of hard to tune. It was recommended to me to buy a new one and save some headaches.

I found a good deal on a Dales Killer CV carb. Significantly cheaper than a new Mikuni 42. My bike has pipes and exhaust and I donít really plan on doin much more, maybe a mild cam.

What would yall do? New Mikuni or almost new CV for less.
What would I do???
Bolt on a S&S E... but that's just me.
 
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Old 07-11-2018, 04:02 PM
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Originally Posted by Fblo1690 View Post
i know that this has been beaten to death...My Mikuni 42 is worn out. Prolly over 10 years old. Been kind of hard to tune. It was recommended to me to buy a new one and save some headaches.

I found a good deal on a Dales Killer CV carb. Significantly cheaper than a new Mikuni 42. My bike has pipes and exhaust and I donít really plan on doin much more, maybe a mild cam.

What would yall do? New Mikuni or almost new CV for less.
Has anyone here gone with the "Killer CV" guys? Seems like a good deal if they deliver what they say they will.

Personally, I hope you go with that option and report back. I'm curious to learn about your experience. Of course, it's easy to be curious when I'm spending your money!


 
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Old 07-11-2018, 04:04 PM
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There a quite a few people that build bigger CV carbs, and if it comes to that it will be my pathway.
I think there is even a 44 sold somewhere.
Again, not needed unless you have the lungs to move the air.
 
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Old 07-11-2018, 04:05 PM
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Thanks for the replyís. I have an AFR unit. I just want to be trouble free. I want to install and forget about it. I donít hot rod. I ride this bike back and forth to work when the weathers nice. It seems like Iím always messing with the Mikuni. Iíll prolly go for that CV carb...why not.
 
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Old 07-11-2018, 04:06 PM
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Originally Posted by ClifWideGlide View Post
I just switched mine back to my stock CV carb that thankfully I didnít get rid of when I put the Mikuni on some years ago. I just could never get the Mikuni to work as I desired and the last straw was beginning this year it would not have any power under a load. I put the CV back on after it was sitting in a box for years and so far no problems at all! If you do go with the CV, remember youíll need a manifold for it also.
My Mikuni uses the factory ďPush inĒ manifold. And Iím running a RamJett Manifold. So I think Iíll be ok. As far as the throttle cableís can I use the same?

 
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Old 07-11-2018, 04:07 PM
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