Bigger carbs

Leathal
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Bigger carbs

11 Mar 2011 19:55

Hi all am new here.

I am building a big bore 750 and am looking to put bigger carbs on it.

What are the recommended upgrade? from which bike?

Ok here is what I am running.

810 big bore with raised compression. Fully ceramic coated

The head is shaved. coated and ported. stock valves

big set of Web cams and an exhaust.

Any help would be appreciated.

Thanks

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DoubleDub
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Re: Bigger carbs

11 Mar 2011 20:04

#437177

I know some guys who put the Mikuni VM26SS Round Slide carbs from the Kz900/Kz1000's on there. Haven't done it personally so I can't speak to performance.

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wireman
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Re: Bigger carbs

11 Mar 2011 20:08

#437181

maybe a set of vm 28s or some 29 crs

posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.

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Leathal
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Re: Bigger carbs

11 Mar 2011 21:22

#437205

Do any of the GSXR flat slide fit?

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Leathal
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Re: Bigger carbs

11 Mar 2011 22:35

#437220

Ok have done a little more research. Its a 1990 model 750 zephyr.
It has on it now a set of keihin CVK32's

Now the GPZ750's came out with Mikuni 36's

Should I switch to the Mikuni or go and fit a race set of factory pro jets to the keihins?

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wireman
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Re: Bigger carbs

11 Mar 2011 22:40

#437222

yeah the newer motors have a lot bigger ports than the older 650/750s.

posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.

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Leathal
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Re: Bigger carbs

12 Mar 2011 18:21

#437509

So should I stick with the kehein 32's or chase up a set of Mikuni 36's?

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TeK9iNe
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Re: Bigger carbs

12 Mar 2011 18:32

#437514

Stick with'em, they'll be fine.

Motorcycle Shop Owner/Operator

79 Kawie Z1000 LTD
81 Kawie Z1000 CSR
83 Honda VT750C A
85 Kawie GPZ900 A2
86 Zukie GS1150 EG
93 Yamie XV1100 E
Lucky to have rolled many old bikes through my doors

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wireman
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Re: Bigger carbs

12 Mar 2011 18:34

#437515

ive seen a lot bigger motors run really well on smaller carbs than 36s myself.
my 1327 runs really well with an old set of 33 smoothbores,i know of a really good running 1385 with 36 flatslides but thats just my experiance anyway.

posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.

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Leathal
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Re: Bigger carbs

12 Mar 2011 18:43

#437519

Cool I will just jet up the ones I have and go with that for now.. And if they don't keep up then I'll look at going bigger. Maybe then fuel inj in stead.

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