Z500-B3 cylinder head studs

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09 Mar 2020 13:49 #820617 by tromos
Z500-B3 cylinder head studs was created by tromos
Hello!
Long time lurker, first time poster here.

So I decided to replace my head gasket a couple of days ago because there was a bit of oil leakage, and accidentaly snapped 2 of the studs.
I've been searching online for new studs but I cant find anything for this modell? are the studs from the kz550 interchangeable? Or is there a website ive missed?

thanks

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09 Mar 2020 15:02 #820625 by gordone
Replied by gordone on topic Z500-B3 cylinder head studs
Have you checkef partzilla.com ?
I took a quick search, looks to be part number 92004?

www.partzilla.com/catalog/kawasaki/motor...z-kz550-d1/crankcase

1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
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10 Mar 2020 07:52 - 10 Mar 2020 07:53 #820660 by martin_csr
Replied by martin_csr on topic Z500-B3 cylinder head studs
The Z500 won't be listed at most places as that model line wasn't sold in the USA & most diagrams are for the USA/CAN models. cmsnl.com is the only site I know of that has some non-USA models, but I didn't see a Z500. cmsnl has some supersession info which can be handy.

Probably the closest match to a 500 is the KZ550 & the studs are probably the same. You could measure yours to verify what you have.
1981 KZ650 Competition Sports and Road
Last edit: 10 Mar 2020 07:53 by martin_csr.

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10 Mar 2020 09:09 - 10 Mar 2020 09:19 #820669 by TexasKZ
Replied by TexasKZ on topic Z500-B3 cylinder head studs
I looked at the cross feference software page at Zedder.com, and no mention of a KZ500 or Z500.
I did see a few 500cc models-
H1 triple two stroke
EN Vulcan twin
EX Ninja twin
KX motocross two stroke thumper

I wonder which market it was sold in?
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
Last edit: 10 Mar 2020 09:19 by TexasKZ.

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10 Mar 2020 09:12 #820670 by tromos
Replied by tromos on topic Z500-B3 cylinder head studs
Yeah I measured them today and they're a bit long ~165, 150, and 130mm so I think it's a no go

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10 Mar 2020 09:19 #820671 by tromos
Replied by tromos on topic Z500-B3 cylinder head studs
The VIN number says KZ500AE but can't find anything about that one either

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10 Mar 2020 09:34 - 10 Mar 2020 12:16 #820673 by martin_csr
Replied by martin_csr on topic Z500-B3 cylinder head studs
The Z500 was probably sold in Japan/Asia, Australia, Europe & a few other places. I haven't found much info on the 500.
motorcyclespecs.co.za has one Z500 listed. In addition to the 550, the Z400 4-cylinder is similar.
Japan Webike lists an exhaust system that supposed to fit the Z400/500/550 models (400FX & 400J, not the Twins).

Zedder probably only covers the North American models.
1981 KZ650 Competition Sports and Road
Last edit: 10 Mar 2020 12:16 by martin_csr.

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10 Mar 2020 09:41 #820674 by TexasKZ
Replied by TexasKZ on topic Z500-B3 cylinder head studs
At any rate, I am really surprised that a cylinder stud broke while tightening the nut. I wonder what happened?
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

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10 Mar 2020 12:29 - 11 Mar 2020 05:24 #820687 by martin_csr
Replied by martin_csr on topic Z500-B3 cylinder head studs
No eBay APP ID and/or Cert ID defined in Kunena configurationBy tromos: The VIN number says KZ500AE but can't find anything about that one either.

Is that the VIN or engine number? I would get the Kawasaki factory service manual that covers the 400/500/550 models (400 4-cyl, not the Twins).

... EB search = KZ550 manual. others are listed. this one shows the model application chart on the back cover.
1981 KZ650 Competition Sports and Road
Last edit: 11 Mar 2020 05:24 by martin_csr.

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10 Mar 2020 14:02 #820698 by gazzz
Replied by gazzz on topic Z500-B3 cylinder head studs
Z500 was for European market and as far as I know there is no online parts list for it. However some paper versions of parts lists could be found in Europe. Like this one:

www.ricardo.ch/de/a/kawasaki-z-500-ersat....katalog-1067396840/

According to sample images from that book Z500 has cylinder studs identical to Z550.
Kawasaki KZ650 cafe-racer: in progress

Kawasaki Zephyr 750 (810ccm, 4in4, spoked wheels)
Honda CB815 "Eight Fifteen" cafe-racer
Yamaha XJ "Eight Ball" cafe-racer

www.gazzz-garage.com
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10 Mar 2020 14:43 #820700 by Scirocco
Replied by Scirocco on topic Z500-B3 cylinder head studs
His over all messurments of the studs are +20 mm longer (OEM110/130/145 mm) against his messurments 130/150/165 of the studs.

My 1975 Z 1 B 900 Project

www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
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10 Mar 2020 15:41 - 10 Mar 2020 15:42 #820708 by gazzz
Replied by gazzz on topic Z500-B3 cylinder head studs

His over all messurments of the studs are +20 mm longer (OEM110/130/145 mm) against his messurments 130/150/165 of the studs.


We know nothing about studs that actually installed in that engine, however Kawasaki Z500 part list says that 500 studs are similar to 550. And I honestly I see no reasons for using longer studs in engine with capacity decreased for only 50ccm. I may only suggest to remeasure studs.
Kawasaki KZ650 cafe-racer: in progress

Kawasaki Zephyr 750 (810ccm, 4in4, spoked wheels)
Honda CB815 "Eight Fifteen" cafe-racer
Yamaha XJ "Eight Ball" cafe-racer

www.gazzz-garage.com
Last edit: 10 Mar 2020 15:42 by gazzz.
The following user(s) said Thank You: 650ed, Nessism

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