What motor will fit my zxr 750

[parto]

Hi

I have a 92 model Zxr 750 i was wondering if a Zx7 motor will fit as i can get one cheap.

Also i know that you can put a Zx9 motor in them i was wondering if anybody knew what year model fits the best???

Cheers

[h.b.bear]

over to you gos

[seiko1]

That would be this one

DSC_0009.JPG (112.52 KiB) Viewed 2252 times

[MadKaw]

Nope that motor doesn't fit but the previous model one might.
I believe the 93 to 95 zx9r engine is the go.

http://homepage.ntlworld.com/webzxr/zxr ... _zxrr.html

[Jonno]

B series motor or at least the B2 does, I have one but you have to buy the rest of the bike with it I am afraid.

[mattyv74]

B series will fit. Any 7r engine will fit. I think

[P4nza]

Nope that motor doesn't fit but the previous model one might.
I believe the 93 to 95 zx9r engine is the go.

http://homepage.ntlworld.com/webzxr/zxr ... _zxrr.html

Didnt dave#3's mutant have this same setup? zx7 frame with a 9 engine?

[Kwak addict]

ZXR 750 L engines are the same as J models externally so will bolt straight in (& give you an extra 15+ HP)
ZX7R engines will not fit without a lot of fabrication & modification.
ZX9R B model engines will fit with very minor clearancing mods to the top mount on the cylinder head casting & frame webbing as per MadKaw's link.
Go for the 9 if you can get one, the torque boost is a thing of beauty & you'll be blessed with around 40 more horses than the 750 J & because it's a 9, each one of those horses has the grunt of a Clydesdale & the speed of a thoroughbred Stallion
If you do go for the mighty 9 POWERplant, use the 750 L 38mm carbs instead of the stock 40s, tons better bottom end, midrange & throttle response & you'll never notice the 3 or 4 HP you lose @ 10K+ rpm.
Back me up Timbo.

[greenman43]

Nope that motor doesn't fit but the previous model one might.
I believe the 93 to 95 zx9r engine is the go.

http://homepage.ntlworld.com/webzxr/zxr ... _zxrr.html

94-97, that should be. 96-97 is better, as the clutch spins slower improving the shifting.

Cheers,
Brian