After Market Carb ID? Pics!

[Anonymous]

I have been to bike shops, friends, the web, and now the forum. I'm running out of ideas. I need a rebuild kit for these carbs and no one can tell me what they are. Any help would be appreciated. They were on a 1981 GS1100.






...and yes, I did use the search function before posting.

[gsBert]

i wish the site hosting your pictures were up so i could have a look...
meanwhile, here are some questions:
- are they keihin or mikuni?
if mikuni, it's likely to be either the stock carbs (guess not)
could be the slingshot flatslide
could be rs flatslide *(has dual throttle cables)
can't think of anybody foolish enough to use anything else from mikuni.
as far as keihin carbs go, im not familiar with them. ill check in later to see if the pics work

[gspaul]

The pictures are displayed here Bert, maybe a prob with your browser!

[Jethro]

I see those pics fine, but can't make a possitive ID on the carbs. Can we see a pic of the top cap, or are they still on the bike attahced to the throttle cables?

[Anonymous]

Can we see a pic of the top cap, or are they still on the bike attahced to the throttle cables?

They are off the bike as well. I will get a picture and post it tonight.

[gsBert]

yeah i can see the pictures now. the hosting site was down at the time of my first post though.

well, those certainly do not look like slingshots. they are not the rs either since they dont have flatslides.

you're only showing us the carb bodies and without any components with them. not even te throttle linkage. i understand stuff better when i see it in context, can you post pics of the whole assy and oter stuff, liek float bowls (side view) and diaphragms (if any are present, which i doubt) as well as a shot of how the carbs bolt to eachother.

if i had to take a guess here, i'd say they looked like mikuni vm, but i've never actually had a set of those and only seen them a couple of times.

im wondering, do they have an accelerator pump? weird linkage from throttle to float bowl. if they do i'd say they are mikuni vm 34 ss (very good carbs)

[Anonymous]

Okay, I added some text to the original photos and here are three more of the rest still hooked together.




Thanks again for any assistance.

[humhead]

They look like VM33 Smoothbores. Here's a link to a schematic: http://www.cyclewareables.com/pages/...es/mikuni6.jpg

Terry

[first timer]

humhead is right those are smoothbore vm33 carbs, they were mainly used as race carbs back in the day. they are a bit rare carb and parts for them are vary limited, there are diffently not any rebuild kits, you need to try peiceing thing back the best you can, and try to reuses as much stuff as possable,, give sudco a call they may have some parts

https://www.sudco.com

-ryan

[Anonymous]

You guys are great! Man, I could have saved myself a lot of time and effort by posting my question here first.

Thanks for the expertise. This is my first ever "motorcycle project" and it was going so well until I got to these mystery (no longer) carbs. I live in my manual and the aftermarket thing really through me off.

Again, I thank you.

[gsBert]

if you can't find parts for the carbs, try to get some slingshots off a recent katana 750 or early 90's gsxr, they work just as well after you get them jetted and are cv carbs.
also the rs series carbs kick on that bike (mechanical pumper carbs)
stock carbs for the 1150 will also work wonders, and are plentiful.