1150 carbs for a 1166 motor?

[oldschoolGS]

1986 thru 1988 1052cc GSXR1100's used flatslide 34mm carbs. I had a set on my '83 GS750 for many years. 1989 GSXR1100 and up went much larger, in the 38-40mm range.

I believe the 88-89 Slingshot 750 motors used 36's though.

1997 and up Bandit 1200's also use 36mm Mikuni's, the 2001 and newer will have a TPS senser on the right side but this can be bypassed.

Good Luck, Ed.
1983 GS750ED
2005 GSF1200SZ
1992 Duc 900SS

[jgordon]

1986 thru 1988 1052cc GSXR1100's used flatslide 34mm carbs. I had a set on my '83 GS750 for many years. 1989 GSXR1100 and up went much larger, in the 38-40mm range.

I believe the 88-89 Slingshot 750 motors used 36's though.

1997 and up Bandit 1200's also use 36mm Mikuni's, the 2001 and newer will have a TPS senser on the right side but this can be bypassed.

Good Luck, Ed.
1983 GS750ED
2005 GSF1200SZ
1992 Duc 900SS

Spacing is not right on the newer carbs to fit the older GS's on th 97 and up. I have 1 set of 36's that you say are slingshot and 1 set of 38's that you say are from an 89 and up 1100. I just know that the 36's work nice on the ole' 1100.

[oldschoolGS]

The RS36's on my Bandit list for any air/oil GSXR, from 1988 to 1992. I have the RS36-D3-K carbs (center pull).

http://www.sudco.com/mikuni6.html

If they work on the Bandit, the same carbs should work on any air/oil GSXR and GS1100.

http://www.pro-flo.com/proflo_mikuni_RS_carb_kits.htm

Spacing for all the air/oil GSXR bikes is listed as 77-93-77. This is identical to the 1997-2000 Bandit 1200. There is a small change on the 2001 and newer bikes (with TPS and less than 5mm). It is so small that you should be able to offset the rack slightly to compensate.

I did use 1997-2000 Bandit 1200 intake boots on my 05 Bandit to get the allignment absolutely perfect and to avoid upsetting the RS rack.

Good Luck, Ed.

[Todd Horton]

I'm a little confused, are these the correct carbs?

http://cgi.ebay.com/ebaymotors/97-99-GSX-R-750-600-CARBS_W0QQcmdZViewItemQQcategoryZ33558QQhashZitem300047128402QQihZ020QQitemZ300047128402QQrdZ1

[oldschoolGS]

No, those are off a liquid cooled bike. Only the air/oil cooled carbs will work.

1992 was the last year the GSXR was air/oil cooled. The Bandit 1200 is the only current Suzuki (in the US) using the air/oil cooled GSXR engine platform.

[Todd Horton]

Ok one more and I'll stop :-D What size carbs were on the 92' GSXR? TH

[sisu1970]

36mm 1100 u.s / 38mm 750 u.s . 1100 ran 36mm from 89-92 38mm on the 750 from 90-92

[the_journeyman]

Which is better? The 36's from the Slingshot 750 or the 38's from 1100?

JM

[buff1260]

The 750 had 38's the 1100 36 & 40's. I ran 38's on an 1166 kit etc and it was terrible with a dynojet kit fitted and without. Id stick with the 36mm efe(1150) carbs or get yourself a real set of flatslide mikuni(rs's) could workout cheaper in the longrun than paying a heap load of dyno time just to get the gsxr carbs to run smoothly.

[Carter Turk]

A set of 36mm 1990 GSXR 11 carbs are on my 1150 Kat. I intially ran the carbs on a stock engine and I was really shocked at the improvement in throttle response.

Where the stock carbs took a bit of time to do what was asked, the GSXR felt more split second responsive.

Then the problems arose. I must have fouled 24 plugs before I got it to run again.

Now they're feeding the 1150 with big bore kit I got talked into.

The off idle performance is annoying and most likely worse than stock. Constant speeds below 30 mph are difficult. If I did all the things everyone here tells you to do they may run better.

Be prepared to do much fiddling. Float height had to be leaned 4mm, a jet kit installed (never tryed stock internals) Pilots are 30, air/fuel 2 turns, needles middle notch, mains 142.5 with K&N Pods and a pipe.

The stock 1150 with stock carbs, jet kit and pods feels sedate compared to the other carbs.

The GSXR throttle cable was shortened as well as the idle adjustment knob. It was touching the cam chain tensioner.

[Mysuzyq]

Suzuki RF900 (early 90's) also used essentially the same Mikuni 36mm's as the air/oil cooled early Gixxers...these can be scored sometimes on ebay much cheaper than the GSXR listed ones, which get bid high pretty quick.....I got a nice looking set of these for $40.00, though have yet to install on the 1100 .

Tony.