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Help with carb identification?

  • Thread starter Thread starter arblebang
  • Start date Start date
A

arblebang

Guest
Hi all my friend recently gave me a set of carbs in excellent condition, and I recognized them right away as old Mikuni's that looked exactly like the ones I used to have on my GS850. Assuming stock jetting, if the mains are running 102.5, can anyone tell me what model GS these likely came from?

Thanks
 
arblebang said:
Hi all my friend recently gave me a set of carbs in excellent condition, and I recognized them right away as old Mikuni's that looked exactly like the ones I used to have on my GS850. Assuming stock jetting, if the mains are running 102.5, can anyone tell me what model GS these likely came from?

Thanks
Click to expand...


What kind of Mikuni's?
 
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OK yeah of course here they are, my 850 was a 81 model but I sold it long ago to a forum member, this is just what I remember they looked like.
 
Wow those are amazingly clean! CV for sure, and if you measure the bore you'll know the size 32,34, or 36mm.
 
Those carbs are not from a GS Suzuki. I'm not sure what they are from though.
 
Engine side is 32mm, airbox side approx 48mm.


The butterfly valves are stamped with a square within a square design, followed by 125.

No other identifying marks that I can see...
 
Anything stamped just above the float bowls on the side of the carb?
 
No nothing indicative like a serial number, altho one side of the bodies says "Mikuni Corp" and the other side says "Made in Japan"
 
Aha, I see, neither of those were"perfect" fits but it definitely seems that these came from a Yamaha. Thanks man I am going to get on their forum and see if anyone over there can put these awesome carbs to use.
 
With the 2 outer tops chrome and the 2 inner tops plain,and the size of those carbs,along with the choke hook-up,and idle adjustment set-up,they look amazingly like the set on my Kawasaki ZL600.Can you tell if they are set up for one throttle cable,or two?
 
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Looks alot like the carbs on a KZ I onced had.
 
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Both the ZL I mentioned and the KZ chef mentioned had two throttle cables,a pull and a push.A fair amount of Kawasakis used this model carbs,as well as Yamaha,and of course,Suzuki.
Outside of what rustybronco suggested,it's just a shot in the dark.
 
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Ive been all over this thing looking for serial numbers and I just cant locate any, aside from the very faint 125 stamped into the butterfly valves. I'll keep looking, but I think what I will have to do is put on a pot of coffee and just spend a few hours on ebay, looking at all the years and models of carbs for sale to try and match them up. I am thinking Yamaha because they looked very similar to those old Seca carbs, and the 102.5 main jetting is making me think of something 650cc or less.

All of my bikes that run, run well, so I do not have much use for these carbs, but they are in such good shape I wont let them rust away on my shelf either, if I can get them to the right bike so that someone can use them, and put a couple bucks in my pocket, then everyone wins.

Thanks for all the great suggestions I am going to go down the list and see what there is to be seen.
 
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