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TOPIC: J-Model Base Gasket

J-Model Base Gasket 14 Aug 2019 12:01 #809161

  • richard-GPZ
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My bike is an 1983 GPZ-1100 and I was wondering if anyone else has trouble with the base gaskets from Cometic interfering with front cam chain guide?

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J-Model Base Gasket 14 Aug 2019 12:19 #809162

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Welcome Richard, can you upoad some pics of your base gasket Trouble?

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Last edit: by Scirocco.

J-Model Base Gasket 14 Aug 2019 12:55 #809163

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If you look close at this gasket I used in a mock assembly it was bent over by the front cam chain guide.
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Last edit: by richard-GPZ. Reason: picture missing

J-Model Base Gasket 14 Aug 2019 13:22 #809165

  • SWest
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Did you install it backwards?
Steve
Z1b1000 1975 Z1b
Opinions expressed by me do not reflect those of the the staff or members
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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J-Model Base Gasket 14 Aug 2019 13:25 #809166

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In my opinion you have flip over the front to rear aka upside down surface of the gasket. Is any site of the gasket stamp with an up or down Symbol?

edit : add a pic of the bottom rear gasket.

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Last edit: by Scirocco.

J-Model Base Gasket 14 Aug 2019 13:32 #809167

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No sir. I used the dowel pins and they won't fit the back holes of the gasket if you put it in backwards.

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J-Model Base Gasket 14 Aug 2019 13:39 #809170

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I am not so skilled with the J-model engines but maybe you have to put in the chain guide first and then on top the base gasket.

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Last edit: by Scirocco.

J-Model Base Gasket 14 Aug 2019 13:57 #809172

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The front cam chain guide is put in after the gasket and block are installed. It fits into the block then the head gasket and head go on top.

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J-Model Base Gasket 14 Aug 2019 14:15 #809173

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Common trim gasket .
1984 GPZ 1100
1170 wiesco 10.5 cr
Larry Cavanaugh head
Bored Throttle bodies
Web .415in cams
Kerker K2 with comp baffle
RC Hp inj
Pogue Adj Regulator

VITON VALVE SEALS $22.00 SET OF 8 SHIPPED TO LOWER 48 PM ME.

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J-Model Base Gasket 14 Aug 2019 14:37 #809174

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DFIGPZ wrote: Common trim gasket .


I take it you have had the same problem. My issue is I want to use a rubber coated steel gasket. I don't believe I will be able to easily trim it.

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J-Model Base Gasket 15 Aug 2019 05:11 #809186

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Are you sure that base gasket isn't for the earlier motor.
The slot for the cam tunnel is usually cut wider at the end where the guide sits on the 'J'..
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Last edit: by zed1015.

J-Model Base Gasket 15 Aug 2019 07:19 #809198

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That gasket doesn't look to be the right one for a J motor. This is the OEM paper base gasket for my 81 Kz1000.

1981 Kawasaki Kz1000K1
Located in the Saint Louis, Missouri Area.
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J-Model Base Gasket 15 Aug 2019 18:37 #809239

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+1 you have the earlier gasket. Will not fit the J motor.
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J-Model Base Gasket 15 Aug 2019 20:04 #809244

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Thanks Guys for the help .
Got a hold of vendor and they apologized for sending the wrong gasket.
Should be getting new one soon that will fit my motor.
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