Engine fitment?

  • Goalieguy35
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Engine fitment?

12 Jul 2011 19:36
#462514
Hello, is any one aware if a kz 900 motor will fit in a 1982 kz 750 frame? I know the 1000's and the 900's are interchangable. The bigger bikes have a longer stroke so i think it might be to tall to fit. i appreciate any feed back!
1982 Kz750 w/ inverted gsxr front end. (sold) but forever missed
1980 z1000 cafe project w/76kz900 motor in it
80 kz 1000
81 kz1000
79 Yamaha xs 650
1979 kz 1000 LTD
1977 kz 1000 A
1977 kz 650 C
1978 kz 650

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  • ELCouz
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Re: Engine fitment?

12 Jul 2011 19:46
#462517
Quote from old KZRider archive ( www.kzrider.com/archive/viewthread.php?tid=11950 )
From what I recently learned from another member here (Murphyau) the KZ750 frame is basically identical to a KZ650 frame. The KZ/Z1900 and KZ1000's on the other hand are an entirely different animal.
It's longer for starters, and the engine mounts are bolted to the frame in different locations, as to where the 650 and750's were welded to their frames.

I'm sure someone else here has the actual measurements, and will probably be posting them shortly. :)

That might give you a clue about the size of your project ;)

regards,
laurent
1982 KZ810-R1 GPZ with hindle 4-into-1 pipe

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  • zed1015
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Re: Engine fitment?

12 Jul 2011 19:50
#462519
Yes! It's been done plenty of times.
Z9/1000 and gpz11 are taller but will squeeze into the 650 and 750 frames.
You will have to make new motor mounts though and the cam cover will run very close to the bottom of the fuel tank.
AIR CORRECTOR JETS FOR VM CARBS AND ETHANOL RESISTANT VITON CHOKE PLUNGER SEAL REPLACMENT FOR ALL CLASSIC AND MODERN MOTORCYCLE CARBURETTORS
www.kzrider.com/23-for-sale/611992-air-c...lide-mikunis?start=0





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  • Goalieguy35
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Re: Engine fitment?

13 Jul 2011 00:26
#462584
ok thanks for all the feed back. Im in the process of changing my 1980 z1000 with a 900 motor due to a valve guild pulled out so im putting the other motor in :woohoo: and thanks i measure and it seemed like it would be tight but would fit!

THANKS!
1982 Kz750 w/ inverted gsxr front end. (sold) but forever missed
1980 z1000 cafe project w/76kz900 motor in it
80 kz 1000
81 kz1000
79 Yamaha xs 650
1979 kz 1000 LTD
1977 kz 1000 A
1977 kz 650 C
1978 kz 650

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