1992 GSXR 1100 Carbs... Will they fit an 83 GS750E?

[John Adams]

I'm wondering if '92 GSXR 1100 carbs will fit on an '83 GS750E? If so, has anyone re-jetted them, or have any suggestions on jetting for a GS750E? The GSXR carbs seem to be cheap on EBAY so I'm wondering if they are worth giving a try

John

[chef1366]

I know they swap on the 1100s. Since 1100s have 34mm and 750s have 32mm I'd have to say no.

[Billy Ricks]

What size are the carbs? 34's will be alright but bigger than that and you won't get them on the manifolds.

[John Adams]

I'm looking at a 92 GSX-R1100 service manual and they say the carbs are BST36SS with a 36mm bore.

I assume the bore is the inside diameter of the intake/engine side?

[Billy Ricks]

I'm looking at a 92 GSX-R1100 service manual and they say the carbs are BST36SS with a 36mm bore.

I assume the bore is the inside diameter of the intake/engine side?

That would be correct. The inlet side is more like 54mm. You could get manifolds from an earlier GS1100 that used 34mm carbs. The 36mm carbs shouldn't flow any more air than my 34mm RS flatslides so tuning should be doable.