36mm GSXR Carbs on an 80 GS1100e

[liloaty]

From what I've read and been told by the extremely helpful guys on this board, you'd be better off going with the 34mm mikunis. If you did decide to do the 36mm, you're jetting would definitely be different

[Pulukka]

From what I've read and been told by the extremely helpful guys on this board, you'd be better off going with the 34mm mikunis. If you did decide to do the 36mm, you're jetting would definitely be different

Ive been reading these carb swap topics for a while now and now I have to try it myself, even though I just installed a dynojet kit and K&N:s for my 1980 gsx 1100 last summer and all is working great...

There are guite a lot of these gsxr carbs available here in Finland and even more in german ebay. Now there seems to be a set of 34 mm gsxr carbs available from a 1987 bike:

I suppose these would be suitable for my bike - the slides seems to be flat and carbs appear to be quite clean, why is 34 mm better than 36? What are the benefits when choosing 34 instead of 36 or are there any? Wouldnt 36s give more top end power? Are the 1989-92 carbs better/more modern than these? I´m still stubbornly searching for 89-92 36 mm gsxr carbs but now I popped into these...

what to do, what to do :?

[mikluha]

Pardon my ignorance. But aren't GSXR carbs downdraft and GS engines are sidedraft? If you fit gsxr carbs isn't the fuel level going to be wrong (at least tilted). That should affect the operations.

[liloaty]

Pardon my ignorance. But aren't GSXR carbs downdraft and GS engines are sidedraft? If you fit gsxr carbs isn't the fuel level going to be wrong (at least tilted). That should affect the operations.

You are absolutely right. I had to adjust the float height level to about 17mm to keep the bowls from leaking.

[katman]

Pardon my ignorance. But aren't GSXR carbs downdraft and GS engines are sidedraft? If you fit gsxr carbs isn't the fuel level going to be wrong (at least tilted). That should affect the operations.

late 80's early 90's gsxr/katana carbs are side draft like the GS if I am not mistaken. I think the '96 srad was the first downdraft head.

[liloaty]

late 80's early 90's gsxr/katana carbs are side draft like the GS if I am not mistaken. I think the '96 srad was the first downdraft head.

I believe my carbs to be off of a 91 GSXR and they are downdraft

[rapidray]

I believe my carbs to be off of a 91 GSXR and they are downdraft

Sorry to correct you but they are NOT downdraft. They are angled slightly but they are SIDE draft carbs. Ray.

[liloaty]

No need to apologize Ray, I'm always happy to learn something new \\/

[Don Williams]

I came across gixer carbs too but the slide assembly are worn out and u can't buy it seperate from the carbs themselves, so what know?

[liloaty]

I came across gixer carbs too but the slide assembly are worn out and u can't buy it seperate from the carbs themselves, so what know?

Get new carbs? Are you sure someone like bike bandit won't sell the individual OEM pieces? I'm willing to bet they do, but I'll also put money on the pieces costing more than just getting another used set of carbs in good shape. They pop up on ebay all the time, I just got lucky and someone offered them to me on the forums.