KZ 750 LTD: Shaft to Chain Conversion?

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27 May 2013 16:54 #589460 by Surt
KZ 750 LTD: Shaft to Chain Conversion? was created by Surt
hi all, just registered on here after purchasing a '84 KZ 750 LTD for 3 hundred roo skins
i named the project the Nightrider after the Mad Max movie character, so lets remember the Nightrider when we look into the night sky!
well, my idea is to convert it to the chain drave using gear shafts and left cover from a chain driven Kz 750, or still better, from a GPZ750 Turbo, any one has those shafts and cover at hand to compare with mine?

i1175.photobucket.com/albums/r638/Surt_R...htrider/DSCF0089.jpg
ZN750 Ltd Shaft (non-USA)

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29 May 2013 13:46 #589742 by Surt
Replied by Surt on topic KZ 750 LTD: Shaft to Chain Conversion?
come on mates the shafts looks the same starting from kz750 twin to gpz 750 turbo, judging on ebay piccies!
ZN750 Ltd Shaft (non-USA)

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29 May 2013 18:27 #589781 by steell
Replied by steell on topic KZ 750 LTD: Shaft to Chain Conversion?
No way Jose! 750 turbo trans won even fit in a standard GPz750. I believe the crank and the top end (cylinder, head, valves, etc) from the Turbo are the only parts that will fit the other 750s. The Turbo is in a class of it's own.
KD9JUR

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29 May 2013 23:19 #589850 by Surt
Replied by Surt on topic KZ 750 LTD: Shaft to Chain Conversion?
jose? lmao! well at least something but how about kz 750 4 cyl models trannies? crankcases, left covers?
ZN750 Ltd Shaft (non-USA)

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30 May 2013 08:59 #589892 by steell
Replied by steell on topic KZ 750 LTD: Shaft to Chain Conversion?
Any 750 four trans except 83-85 GPz750 and Turbo, and the six speed trans from the 550's and early GPz600, will fit.

Left covers off the 550, 650, 750 four and twin all fit, assuming you mean the trans cover.

650 and 750 engine cases interchange, but pre 81 650s have a kickstarter.
KD9JUR
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01 Jun 2013 06:24 - 01 Jun 2013 07:05 #590230 by Surt
Replied by Surt on topic KZ 750 LTD: Shaft to Chain Conversion?
thanks heaps steell!
sure i mean the tranny cover, another coupla questions, shall i have to swap crancases or could keep mine? then, you said the shafts are the same, does it mean i can use my secondary shaft and fix a sprocket on to it, or perhaps its sprocket part is different and i'd need a replacement? thanks in advance bro!
ZN750 Ltd Shaft (non-USA)
Last edit: 01 Jun 2013 07:05 by Surt.

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01 Jun 2013 12:24 #590276 by steell
Replied by steell on topic KZ 750 LTD: Shaft to Chain Conversion?
You'll have to check the output shaft, I have no idea if you can put a sprocket on it.
KD9JUR
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02 Jun 2013 02:02 #590387 by RonKZ650
Replied by RonKZ650 on topic KZ 750 LTD: Shaft to Chain Conversion?
Why in the world would you want to get rid of shaft and go to chain? Thats like going from fuel injection to carbs or electronic ignition back to points. Motorcycles are possibly the only vehical that most prefer 1890s technology in the drivetrain.
321,000 miles on KZ's that I can remember. Not going to see any more.

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02 Jun 2013 13:08 - 18 Aug 2013 15:15 #590442 by Surt
Replied by Surt on topic KZ 750 LTD: Shaft to Chain Conversion?

RonKZ650 wrote: Why in the world would you want to get rid of shaft and go to chain? Thats like going from fuel injection to carbs or electronic ignition back to points. Motorcycles are possibly the only vehical that most prefer 1890s technology in the drivetrain.


i don't mind converting a bike to efi (and turbo lol)(and i did it a few times) but the shaft?! any bike fan would tell ya why: weight saving and wider tyre.. when i see a moto gp bike with the shaft drive then i'l undertand im stuck back in the 19th century
ZN750 Ltd Shaft (non-USA)
Last edit: 18 Aug 2013 15:15 by Surt.

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21 Aug 2013 17:11 #602500 by Surt
Replied by Surt on topic KZ 750 LTD: Shaft to Chain Conversion?
so the story's continued
bought a gpz 750 complete engine for $500

a meeting nose to nose

i1175.photobucket.com/albums/r638/Surt_R...htrider/DSCF0107.jpg

close up

i1175.photobucket.com/albums/r638/Surt_R...htrider/DSCF0108.jpg

i1175.photobucket.com/albums/r638/Surt_R...htrider/DSCF0109.jpg
ZN750 Ltd Shaft (non-USA)

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21 Aug 2013 17:19 #602503 by Surt
Replied by Surt on topic KZ 750 LTD: Shaft to Chain Conversion?
find 10 distinctions

1. clutch actuators r different and on different sides

i1175.photobucket.com/albums/r638/Surt_R...htrider/DSCF0113.jpg

i1175.photobucket.com/albums/r638/Surt_R...htrider/DSCF0114.jpg

2 naturally different left covers,
lets see under them

shafty

i1175.photobucket.com/albums/r638/Surt_R...htrider/DSCF0114.jpg

i1175.photobucket.com/albums/r638/Surt_R...htrider/DSCF0121.jpg

chainy

i1175.photobucket.com/albums/r638/Surt_R...htrider/DSCF0122.jpg

but both r having the same set of threaded m6 holes! so u dont have to swap casesfor the chain conversion
ZN750 Ltd Shaft (non-USA)

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21 Aug 2013 17:19 #602504 by slayer61
Replied by slayer61 on topic KZ 750 LTD: Shaft to Chain Conversion?
Anything can be done, given enough talent and ambition...
My motor builder is in the process of building a Flattrack racer using a Honda CX500 as the motor. He is turning the motor sideways in a custom (duh!) frame and converting from shaft to chain! Good luck with your project. Paul
Don't be ridiculous! It's only a flesh wound!

[strike]Wife's little bike... 1984 GPZ 550 Kerker and DynaJet stage I kit[/strike]
Wife's BIG bike......[strike] 1981 GPZ 1100 Kerker and [strike]factory FI[/strike] Mikuni RS34s W/ K&N pods[/strike] SOLD

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