crankshaft zx550 (GPZ550)

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06 Aug 2021 13:02 #853267 by Fairing_d87
crankshaft zx550 (GPZ550) was created by Fairing_d87
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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06 Aug 2021 15:17 #853281 by Street Fighter LTD
Replied by Street Fighter LTD on topic crankshaft zx550 (GPZ550)
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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06 Aug 2021 15:55 #853287 by Scirocco
Replied by Scirocco on topic crankshaft zx550 (GPZ550)
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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06 Aug 2021 23:23 #853316 by Fairing_d87
Replied by Fairing_d87 on topic crankshaft zx550 (GPZ550)
Thank you, the patient is just convinced. then another question will come from zephur (zr550) ???

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07 Aug 2021 06:40 #853331 by TexasKZ
Replied by TexasKZ on topic crankshaft zx550 (GPZ550)
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

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07 Aug 2021 06:58 #853334 by Nessism
Replied by Nessism on topic crankshaft zx550 (GPZ550)
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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07 Aug 2021 07:01 #853335 by TexasKZ
Replied by TexasKZ on topic crankshaft zx550 (GPZ550)

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
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07 Aug 2021 10:50 - 07 Aug 2021 10:52 #853350 by loudhvx
Replied by loudhvx on topic crankshaft zx550 (GPZ550)
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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07 Aug 2021 18:49 #853387 by TexasKZ
Replied by TexasKZ on topic crankshaft zx550 (GPZ550)

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
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08 Aug 2021 20:35 - 08 Aug 2021 20:36 #853427 by Fairing_d87
Replied by Fairing_d87 on topic crankshaft zx550 (GPZ550)
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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08 Aug 2021 21:42 #853428 by F64
Replied by F64 on topic crankshaft zx550 (GPZ550)
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.
LIC, NY
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11 Aug 2021 03:57 #853557 by Fairing_d87
Replied by Fairing_d87 on topic crankshaft zx550 (GPZ550)
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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