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Z500-B3 cylinder head studs 09 Mar 2020 13:49 #820617

  • tromos
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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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Z500-B3 cylinder head studs 09 Mar 2020 15:02 #820625

  • gordone
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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).

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www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
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Z500-B3 cylinder head studs 10 Mar 2020 07:52 #820660

  • martin_csr
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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.

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Last edit: by martin_csr.

Z500-B3 cylinder head studs 10 Mar 2020 09:09 #820669

  • TexasKZ
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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

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Last edit: by TexasKZ.

Z500-B3 cylinder head studs 10 Mar 2020 09:12 #820670

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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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Z500-B3 cylinder head studs 10 Mar 2020 09:19 #820671

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The VIN number says KZ500AE but can't find anything about that one either

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Z500-B3 cylinder head studs 10 Mar 2020 09:34 #820673

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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.

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Last edit: by martin_csr.

Z500-B3 cylinder head studs 10 Mar 2020 09:41 #820674

  • TexasKZ
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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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Z500-B3 cylinder head studs 10 Mar 2020 12:29 #820687

  • martin_csr
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By 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.

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Last edit: by martin_csr.

Z500-B3 cylinder head studs 10 Mar 2020 14:02 #820698

  • gazzz
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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.
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Z500-B3 cylinder head studs 10 Mar 2020 14:43 #820700

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

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Z500-B3 cylinder head studs 10 Mar 2020 15:41 #820708

  • gazzz
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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
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Last edit: by gazzz.
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