1150 Carbs on 82 1100E?

[mmattockx]

I have seen a number of people mention using the larger 1150 carbs on the 1100 engine. I am currently running pods and a Kerker 4-1 on my 1100E and it runs extremely well. For the people that have experience with this, does it provide a useful increase in power and (in your opinion) is it worth the effort to sort jetting and do it all again, considering I have mine running so well with the stock carbs? Another question that comes to mind is can I use the same APE pods on the 1150 carbs as I am using on my stock carbs? Having to buy a new set of pods significantly adds to the expense of the swap if it is necessary.


Thanks,
Mark

[rapidray]

Yes, on ALL of your questions!
Ray.

[nastyjones]

I have 1150 carbs on my 1100. It made a noticeable difference in performance once I had the jetting sorted, and no I don't remember what jetting I used. The motor even sounded different under max acceleration. Yes, you use the same pods.

[bobgroger]

Change the manifolds too. The 1150 ones are noticeably larger.... If you have stock cams Dynojet -3 kit gets you in the neighborhood.

[mmattockx]

Yes, on ALL of your questions!
Ray.

Thanks, Ray. I know you have been there and done it many times. Anything to know about the swap? Throttle and choke cables hook right up?

I have 1150 carbs on my 1100. It made a noticeable difference in performance once I had the jetting sorted, and no I don't remember what jetting I used. The motor even sounded different under max acceleration. Yes, you use the same pods.

Did you go with a Dynojet kit? Were the stock needles adjustable? Were your carbs US or Kanuck spec?

Change the manifolds too. The 1150 ones are noticeably larger.... If you have stock cams Dynojet -3 kit gets you in the neighborhood.

Now there's something I never would have thought of. Yes, stock cams degreed to 106/108 lobe centers.


Thanks for the reply gentlemen,
Mark

[nastyjones]

Yes, I used the Dynojet kit. I believe the stock needles were adjustable. AFAIR, the carbs came from the U.S.

[gsxkat]

I didn't need to change the inlet manifolds or re-jet. There was a noticeable increase in mid range power.

[bobgroger]

I didn't need to change the inlet manifolds or re-jet. There was a noticeable increase in mid range power.

As you can see there is a noticeable difference between the 1100 and the 1150 boots. Granted, it may not help but it sure can't hurt.

[rapidray]

I've never changed the boots when going from 1100 to 1150 carbs either & it won't even matter with a non ported head.
Ray.

[mmattockx]

I didn't need to change the inlet manifolds or re-jet. There was a noticeable increase in mid range power.

Were you running the airbox or pods? I can't imagine not needing rejetting since I am running a Kerker 4-1 canister system and APE pods. I like that increased mid-range, lots of fun on the street.

As you can see there is a noticeable difference between the 1100 and the 1150 boots. Granted, it may not help but it sure can't hurt.

Yes, the 1150 boot is bigger. But it still just goes over the same spigot on the cylinder head so that should be the choke point, shouldn't it? Unless the 1150 boot offers a smoother flow path or something that is worthwhile?

I've never changed the boots when going from 1100 to 1150 carbs either & it won't even matter with a non ported head.
Ray.

The head is definitely stock and untouched. Any chance of this causing crank problems when everything is tuned up? It is a small crank motor.


Mark

[rapidray]

Not at all.
Ray.

[80s cars or gtfo]

I have seen a number of people mention using the larger 1150 carbs on the 1100 engine. I am currently running pods and a Kerker 4-1 on my 1100E and it runs extremely well. For the people that have experience with this, does it provide a useful increase in power and (in your opinion) is it worth the effort to sort jetting and do it all again, considering I have mine running so well with the stock carbs? Another question that comes to mind is can I use the same APE pods on the 1150 carbs as I am using on my stock carbs? Having to buy a new set of pods significantly adds to the expense of the swap if it is necessary.


Thanks,
Mark

Hey, sorry to bring up such an old thread, but didn't want to make a whole post about this. When I bought my bike the PO gave me an extra set of mikuni carbs that he said we're "a common upgrade" that's all I know about them. Before installing them however I want to know if that's true and if so, what carbs they are. The carbs are somewhat larger than the stock ones so I think they may be just that. Can you upload a picture of yours or perhaps give me a part number or other way to identify them?

[mmattockx]

Hey, sorry to bring up such an old thread, but didn't want to make a whole post about this. When I bought my bike the PO gave me an extra set of mikuni carbs that he said we're "a common upgrade" that's all I know about them. Before installing them however I want to know if that's true and if so, what carbs they are. The carbs are somewhat larger than the stock ones so I think they may be just that. Can you upload a picture of yours or perhaps give me a part number or other way to identify them?

I don't have a set of 1150 carbs yet to post a picture of. You should post a picture in the carbs/exhaust forum and ask for identification help there. I am sure one of the veterans will know exactly what you have on your hands.


Mark

[bobgroger]

1150 carbs have a stamped steel top cover with a dimple to hold the spring and the throat near the butterfly measures 36MM. They could also be VM smoothbores, they look totally different.
1150: https://www.ebay.com/itm/1984-suzuki...s/253549509903
Smoothbores: https://www.ebay.com/itm/29mm-Mikuni...S/173215275997