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What carbs do I have??
				
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	 Octane80 Octane80
 What carbs do I have??So one thing that has bothered me since owning my gs750 is that the carbs are not the same as what I find in the manual. I always figured it's just a minor change for that particular run. Anyhow, the physical difference is that underneath the carb no fuel mixture adjustment screw exists, the needles are all slightly different, they have two fuel taps between carbs 1 and 2 then carbs 3 and 4, and the top cap on the carb is different from all the other I've seen. When I get home tonight I will pull what numbers I can find off them, but I wondered if anyone might be able to recognize them.
 
  Last edited by Guest; 05-02-2011, 03:51 PM.Tags: None Last edited by Guest; 05-02-2011, 03:51 PM.Tags: None
 
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	 Octane80 Octane80
 Ok I looked em over tonight and couldn't find any other letter/number on them besides mic on one side and mikuni kogyo Japan on the other. I took a couple more pics maybe that will help.
 
  
   
 
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 Well, those are not 26SS carbs
 
 What do the bottoms look like?
 
 2 fuel taps? Sounds like those are the vents1978 GS 1000 (since new)
 1979 GS 1000 (The Fridge, superbike replica project)
 1978 GS 1000 (parts)
 1981 GS 850 (anyone want a project?)
 1981 GPZ 550 (backroad screamer)
 1970 450 Mk IIID (THUMP!)
 2007 DRz 400S
 1999 ATK 490ES
 1994 DR 350SES
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	Forum LongTimerGSResource Superstar
 Past Site Supporter
 Super Site Supporter- Mar 2006
- 36165
- Torrance, CA
 
 Those don't look like VM Smoothbore carbs either. Maybe from a Kawasaki?Ed
 
 To measure is to know.
 
 Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182
 
 Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846
 
 Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf
 
 KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection
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	 Octane80 Octane80
 I'll have to get a pic of the bottom tonight, they are not the smooth bores. This is getting kind of interesting now... when I bought the motorcycle I noticed some holes in the rear rim and was told by a friend they use to do that and drive a screw in to prevent the tire from spinning on the rim during drags. So far everything else has been stock in appearance besides the 4 to 1 kerker, pods, and possibly now this.
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	 Octane80 Octane80
 Just found them, thanks for the tip on Kawasaki as these look identical to carb pictures from a z1.
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	 Adler Adler
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	 Octane80 Octane80
 Ok, this gets even more interesting as the pic just posted by adler is the exact carb minus the float bowl. I looked up the 75 z1 and found the top to be the same then found the bowl to be the exact same as the 76 kz900. Mine has the side screw on the float bowl. So it appears to be a vm 28 of some sort...
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	 Adler Adler
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 If it's a Z1 carb set, it will have an accellerator pump on #21978 GS 1000 (since new)
 1979 GS 1000 (The Fridge, superbike replica project)
 1978 GS 1000 (parts)
 1981 GS 850 (anyone want a project?)
 1981 GPZ 550 (backroad screamer)
 1970 450 Mk IIID (THUMP!)
 2007 DRz 400S
 1999 ATK 490ES
 1994 DR 350SES
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	 Octane80 Octane80
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	 Adler Adler
 Here's all the info you can need on that set of carbs...
 
 Z1 Enterprises specializes in quality Motorcycle parts for Honda, Kawasaki, Suzuki and Yamaha Classic Japanese motorcycles from the 1970's and 1980's.
 On the bottom of that page it has settings and whatnot, though I suspect they may not be applicable to you.
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	 Octane80 Octane80
 Thanks for the help fellas, it's def. the late model vm28sc. I already had tuned them by ear and synced them but it will be nice to have the factory sheets on them.
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