Keihin CV34 to Mikuni BS34 conversion

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15 Jul 2010 11:15 #382852 by bsjoker101
Keihin CV34 to Mikuni BS34 conversion was created by bsjoker101
Hi, I have a 1982 KZ750 H3 that originally came with Keihin CV34 carbs on it. They were gummed up badly and I got them to run decently but never right on. Anyways I bought a set of Mikuni BS34 from a 82 KZ750 Spectre. The the throttle cable holder for the cable did not come on these carbs. The cable itself connects perfectly to the throttle plate actuator, but I need to make some kind of holder for the stock cable. Any suggestions from anyone who has converted from the Keihins to the Mikunis and had to make a modified cable holder to fit? Thanks Brian

1982 KZ750 H3

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15 Jul 2010 11:46 #382856 by steell
Replied by steell on topic Keihin CV34 to Mikuni BS34 conversion
I took the easy way out and just ordered a 83 GPZ750 throttle cable :)

Getting lazy in my old age.

KD9JUR

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15 Jul 2010 13:02 #382868 by chrispysaki
Replied by chrispysaki on topic Keihin CV34 to Mikuni BS34 conversion
A little off topic here, but are the Mikunis a direct fit up with your existing carb boots? I thought I read somewhere that the "34" was not the same size for the Keihins as the Mikunis.

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15 Jul 2010 13:30 #382875 by bsjoker101
Replied by bsjoker101 on topic Keihin CV34 to Mikuni BS34 conversion
They seemed to fit right in. The intake boots were a little of a struggle at first (after holding the keihins for almost 30 years they didnt totally accept the mikunis) but I got them in and tightened down. No evidence of any air leaks yet. But I havent taken it out yet without the throttle. The air box boots fit perfetly, but those are new.

1982 KZ750 H3

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16 Jul 2010 11:11 #383104 by chrispysaki
Replied by chrispysaki on topic Keihin CV34 to Mikuni BS34 conversion
Cool, I've been thinking about getting a set of the BS34s. I'd be interested to hear how you like them compared to the Keihins.

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17 Jul 2010 08:21 #383307 by mark1122
Replied by mark1122 on topic Keihin CV34 to Mikuni BS34 conversion
is there suposed to be an advantage with 1 over the other, or are they pretty much the same carb from 2 dif companies?

76 KZ, frame gusset work,1200CC.Ported by Larry Cavanaugh, 1.5mm.over intakes, Carron Pipe, ZRX12 rear end, and seat,96zx9 front end.
01 CBR600F4i Track bike.
Cobourg, Ont. Can.

~ ~ ~_@
~ ~ _- \,
~ (k) / (z)

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17 Jul 2010 10:13 #383319 by roy-b-boy-b
Replied by roy-b-boy-b on topic Keihin CV34 to Mikuni BS34 conversion
Mikuni parts are plentiful. Roy

1979 LTD Street Fighter.1977 KZ1000

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17 Jul 2010 18:35 #383472 by bsjoker101
Replied by bsjoker101 on topic Keihin CV34 to Mikuni BS34 conversion
Well I never really had a good working set of Keihin's but so far the Mikuni's seem to work better. Just having trouble setting up to work coming off idle is really rough. The Kehins had a Choke flap, the Mikunis have a slide choke passage system. They fit the same appilcation, but are definately not the same carbs by a different company. And making a throttle cable holder was really easy. Took a flat chunk of metal, trimmed it, drilled a hole, tapped some new threads, attached to existing diaphragm cap screw, and screwed the existing cable right in perfectly.B)

1982 KZ750 H3

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