750 Gsxr 86 carbs on 750e-81?

[Krogare]

Found a good deal on a set of 86 gsxr 750 carbs. Do they bolt straight on to a 750e-81 engine?

[Krogare]

More specifically, are they the same c-c wise on the intake side with the same diameter intake boots as the 750e cv carbs?

[harley10]

They should work indeed , Brian

[Guest]

The boots will be tight putting 36mm in 32mm.

[posplayr]

The boots will be tight putting 36mm in 32mm.

86 GSXR 750 are BST31SS, 1987 are BST34SS (just looked them up)

[KEITH KRAUSE]

Found a good deal on a set of 86 gsxr 750 carbs. Do they bolt straight on to a 750e-81 engine?

I don't know from personal experience, but I think the '86 carbs are designed for a much better flowing head than the '81 750.
Your motor will restrict the newer carbs so the air/fuel mixture won't be good nor the amount of mixture.
Maybe with some re-jetting it will run so-so, but I think you're asking for problems.

[Krogare]

Here is a photo, flatslides. I think it could be fun to play around with

[Krogare]

I think these are vm29ss?

[Krogare]

Aw, shucks. I was too slow, add is gone, carbs are sold :-/

[posplayr]

Aw, shucks. I was too slow, add is gone, carbs are sold :-/

Those were RS flat slides and they were probably at least 36's if on a GSXR; gotta be faster