crankshaft zx550 (GPZ550)

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crankshaft zx550 (GPZ550)

06 Aug 2021 13:02
#853267
friends i have trouble!  bought an engine but it is defective.  broken two teeth on the crankshaft.  a question, tell me, the crankshaft from KZ 750 is suitable for the KZ550 engine (ZX550-GPZ550)

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Re: crankshaft zx550 (GPZ550)

06 Aug 2021 15:17
#853281
Welcome to KZRider
Sorry for your bad luck
 Im not a 650 guy / expert , but I think it will fit 
 Im sure others with first hand knowledge will chime in 
Dave

Original owner 78 1000 LTD
Mr Turbo Race Kit, MTC 1075 Turbo pistons by PitStop Performance , Falicon Ultra Lite Super Crank, APE everything. Les Holt @ PDM's Billet Goodies . Frame by Chuck Kurzawa @ Logghe Chassis . Deep sump 5qt oil pan. RIP Bill Hahn
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Re: crankshaft zx550 (GPZ550)

06 Aug 2021 15:55
#853287
Nope.

GPZ 550 bore/stroke = 58 x 52,4 mm
GPZ 750 bore/stroke = 66 x 54 mm
KZ 650 bore/stroke = 52 x 54 mm
My 1975 Z 1 B 900 Project

www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode

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Re: crankshaft zx550 (GPZ550)

06 Aug 2021 23:23
#853316
Thank you, the patient is just convinced. then another question will come from zephur (zr550) ???

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Re: crankshaft zx550 (GPZ550)

07 Aug 2021 06:40
#853331
I am just wondering out loud (in electronic print) if the 750 crank and rods could be used with 550 block, pistons and head, for a 58 X 54mm combo?
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

www.kzrider.com/11-projects/620336-anoth...uild-thread?start=24

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Re: crankshaft zx550 (GPZ550)

07 Aug 2021 06:58
#853334
650's and 750 share a lot of engine parts, but not with the 550.  The smaller engine is quite different.
Ed
Carb O-ring Kits : www.kzrider.com/forum/3-carburetor/61807...-o-ring-kits?start=0

www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know

1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread

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Re: crankshaft zx550 (GPZ550)

07 Aug 2021 07:01
#853335
wrote:
Thank you, the patient is just convinced. then another question will come from zephur (zr550) ???
Looks like the same part number for Zephyr and GPz.

www.partzilla.com/product/kawasaki/13031...ae66e4cfe67886ff8b95
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

www.kzrider.com/11-projects/620336-anoth...uild-thread?start=24
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Re: crankshaft zx550 (GPZ550)

07 Aug 2021 10:50 - 07 Aug 2021 10:52
#853350
Cylinder spacing is closer on the 550 than 750/650. That should make for a challenging fitment project.
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
Last edit: 07 Aug 2021 10:52 by loudhvx.

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Re: crankshaft zx550 (GPZ550)

07 Aug 2021 18:49
#853387
wrote:
Cylinder spacing is closer on the 550 than 750/650. That should make for a challenging fitment project.
What’s a little rod curve between friends?
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

www.kzrider.com/11-projects/620336-anoth...uild-thread?start=24
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Re: crankshaft zx550 (GPZ550)

08 Aug 2021 20:35 - 08 Aug 2021 20:36
#853427
Thank you very much!  I will search from him, it is easier to find him.  after I write about the results (instagram  #wiats)
Last edit: 08 Aug 2021 20:36 by Fairing_d87.

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Re: crankshaft zx550 (GPZ550)

08 Aug 2021 21:42
#853428
or you could just have the gear repaired
81-KZ440-D2.
Louis Dudzik's GM HEI ignitor conversion installed 2015 s3.amazonaws.com/gpzweb/Ignition/GPZgmHEImod.html
Motogadget m-unit blue installed 2017.
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Re: crankshaft zx550 (GPZ550)

11 Aug 2021 03:57
#853557
I thought about it too.  but where can I find such a good uncle in the video))) I'm considering this option if I don't find a crankshaft

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