What carb fits GSX-R 750 1986. - TwoWheelForum: Motorcycle and Sportbike forums
 
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post #1 of 13 (permalink) Old 08-04-2007, 08:13 AM Thread Starter
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What carb fits GSX-R 750 1986.

I just started a samll project. I'm tring to restore GSX-R 750 1986, and I just can't find the origenal mikuni VM29ss carbs. My question if there is any carb that would work the same? If there is no such carb where can I find the orgineal one?

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post #2 of 13 (permalink) Old 08-04-2007, 11:24 AM
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I just started a samll project. I'm tring to restore GSX-R 750 1986, and I just can't find the origenal mikuni VM29ss carbs. My question if there is any carb that would work the same? If there is no such carb where can I find the orgineal one?
Have you tried rebuilding the originals?
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post #3 of 13 (permalink) Old 08-04-2007, 02:38 PM
 
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Thats gonna be a really tough find. I'd keep my eye on eBay for a set.



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post #4 of 13 (permalink) Old 08-04-2007, 09:03 PM
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Rebuild them!




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post #5 of 13 (permalink) Old 08-05-2007, 09:19 AM
 
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Rebuild them!
Maybe the originals aren't around.



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post #6 of 13 (permalink) Old 08-05-2007, 09:23 AM
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post #7 of 13 (permalink) Old 08-05-2007, 09:47 AM
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post #8 of 13 (permalink) Old 08-05-2007, 10:44 AM Thread Starter
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I bought the bike after a crash, all the front is missing and the carbs are gone, to add some interest there is no farings at all.

I found a nice fron on E-bay for about 200$ and about the fairing I would probebly buy new one but i just can't find the carbs.

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post #9 of 13 (permalink) Old 08-05-2007, 10:35 PM
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find out the spacing, and then find a set off carbs with the same spacing. also you need to know if it was a side pull or center pull throttle cable setup...hmmm
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post #10 of 13 (permalink) Old 08-05-2007, 11:04 PM
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Try Sudco http://www.sudco.com/ , they are the importer of mikuni and keihin carbs and parts.

the vm29's were 29mm smoothbore roundslides, no longer made. Keihin makes 28mm Flatslides with or without Accel pumps (like I have on my 904 motor) that should flow as much or more than the original carbs. Call sudco and they can set you up with an adjustable racked set with adjustable velocity stacks, with ballpark jetting recommendations.

Some folks just have more money than good sense.
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post #11 of 13 (permalink) Old 08-05-2007, 11:28 PM
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it appears that you want some 34mm mikuni flatslides, part# RS34-D21K at APE. i doubt you can find the og carbs you had, mikuni vm 29's are way expensive when you find em rebuilt or used, they dont exist new anymore. these-the 34's are better anyway i think. in case you dont want these, your carb spacing is 77-93-77. you can get em in 36-40mm too, depending how much engine mods you're gonna do. if you're just restoring it to stock, or some mild hop ups, go with the 34's.


any set off a suzuki 86-92 will fit, just dont go too big in size or you'll have fuel delivery probs
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post #12 of 13 (permalink) Old 08-05-2007, 11:34 PM
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Quote:
Originally Posted by oldetymebiker View Post
Try Sudco http://www.sudco.com/ , they are the importer of mikuni and keihin carbs and parts.

the vm29's were 29mm smoothbore roundslides, no longer made. Keihin makes 28mm Flatslides with or without Accel pumps (like I have on my 904 motor) that should flow as much or more than the original carbs. Call sudco and they can set you up with an adjustable racked set with adjustable velocity stacks, with ballpark jetting recommendations.
or go with keihin
either way you got a new set of carbs for your bike-and that means we should be rewarded with some project pics lol
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post #13 of 13 (permalink) Old 08-06-2007, 02:41 AM Thread Starter
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Hopefuly it would be done in a month or so, Firts thing after the test ride would be the pics.

and

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