sprocket carrier / cracked

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13 Jun 2018 18:57 #785119 by bergerbut
sprocket carrier / cracked was created by bergerbut
what do u think ,,,is this a stress crack or just a molding blemish?
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  • SWest
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  • 10 22 2014
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13 Jun 2018 19:04 #785120 by SWest
Replied by SWest on topic sprocket carrier / cracked
No big deal.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229
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13 Jun 2018 19:17 #785121 by TexasKZ
Replied by TexasKZ on topic sprocket carrier / cracked
Looks like a casting blemish. I'd say forget it .
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

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13 Jun 2018 19:24 #785122 by bergerbut
Replied by bergerbut on topic sprocket carrier / cracked
thx, that's what I think , the bike has been in storage since '89 with 7200 original miles

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  • hardrockminer
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14 Jun 2018 06:14 #785131 by hardrockminer
Replied by hardrockminer on topic sprocket carrier / cracked
It is a crack, not a blemish. You can see it run right through from the thickest part out to the edge.
I have several restored bikes along with a 2006 Goldwing with a sidecar. My wife has a 2019 Suzuki DR 650 for on and off road.

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  • SWest
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  • 10 22 2014
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14 Jun 2018 06:17 #785132 by SWest
Replied by SWest on topic sprocket carrier / cracked
I'd like to see the back side.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229
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14 Jun 2018 06:31 #785136 by Nessism
Replied by Nessism on topic sprocket carrier / cracked
It's a casting mark. Very common if not present on all similar castings.
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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14 Jun 2018 06:34 #785137 by loudhvx
Replied by loudhvx on topic sprocket carrier / cracked
yep, mine all have similar marks
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.

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  • SWest
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14 Jun 2018 07:14 #785141 by SWest
Replied by SWest on topic sprocket carrier / cracked
Thats two. :whistle:
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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  • hardrockminer
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14 Jun 2018 13:58 #785168 by hardrockminer
Replied by hardrockminer on topic sprocket carrier / cracked
It may be a shrinkage crack from the casting, and not from stress or fatigue.
I have several restored bikes along with a 2006 Goldwing with a sidecar. My wife has a 2019 Suzuki DR 650 for on and off road.

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14 Jun 2018 14:35 #785172 by bergerbut
Replied by bergerbut on topic sprocket carrier / cracked
'74 z1 ,,, 7200 miles ,,, stored 35 years
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14 Jun 2018 14:37 #785173 by bergerbut
Replied by bergerbut on topic sprocket carrier / cracked
thx see below

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