Big Bore Kit

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27 Jan 2014 18:09 #620288 by jeffasaki
Replied by jeffasaki on topic Big Bore Kit
1197 with a proper lap on the valves
78 Z1R
78 KZ1000
76 KH500 gone
71 HS1B 90
81 GS 1100 gone
80 PE400
02 KLR


Ontario Canada

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27 Jan 2014 18:14 #620289 by baldy110
Replied by baldy110 on topic Big Bore Kit
Why were you running a copper head gasket?

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27 Jan 2014 18:45 #620295 by jeffasaki
Replied by jeffasaki on topic Big Bore Kit
:laugh: B)
78 Z1R
78 KZ1000
76 KH500 gone
71 HS1B 90
81 GS 1100 gone
80 PE400
02 KLR


Ontario Canada

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  • wireman
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  • The most interesting prick in the world
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27 Jan 2014 18:49 #620296 by wireman
Replied by wireman on topic Big Bore Kit

4TheKZ1000 wrote: On the topic of big bore, I know that a stock 1015cc cylinder can go to 1105 ..... might be thin on sleeve.

What can a stock GPZ 1100 head be maxed at?

stock 1100 sleeves can go 1166/1170
posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.

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27 Jan 2014 19:00 #620297 by jeffasaki
Replied by jeffasaki on topic Big Bore Kit
1197 = 11.5 to 1
street max

for a air cooled motor

cams make all the difference


KAWASAKI1111111111111
78 Z1R
78 KZ1000
76 KH500 gone
71 HS1B 90
81 GS 1100 gone
80 PE400
02 KLR


Ontario Canada

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27 Jan 2014 19:44 #620307 by jeffasaki
Replied by jeffasaki on topic Big Bore Kit
i meant to say KAWAWSAKI

72 new york steak

im trying
78 Z1R
78 KZ1000
76 KH500 gone
71 HS1B 90
81 GS 1100 gone
80 PE400
02 KLR


Ontario Canada

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27 Jan 2014 19:50 #620308 by JimB
Replied by JimB on topic Big Bore Kit
baldy110,
I was using a one piece copper head gasket because the two piece fiber I put in prior to the rebore was leaking in the front so I figured I would try something different.
Jim
1978 KZ1000A2, 1980 KZ1000E, 1980 KZ1000B4 LTD

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06 Feb 2014 09:55 #621325 by JimB
Replied by JimB on topic Big Bore Kit
OK,...so I am ready to put the cylinder and head back on the bike. I decided I am going to go with the one piece fiber head gasket.
Has anyone used the high temp copper permatex to fill the cam chain o-ring area.? That is what I am planning on using and just wanted some feedback.

Jim
1978 KZ1000A2, 1980 KZ1000E, 1980 KZ1000B4 LTD

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06 Feb 2014 12:02 #621334 by 531blackbanshee
Replied by 531blackbanshee on topic Big Bore Kit
i have no experience with the particular goo you are talking about.

but,it is basically just space filler so anything that sets up will work.

leon
skiatook,oklahoma 1980 z1r,1978 kz 1000 z1r x 3,
1976 kz 900 x 3
i make what i can,and save the rest!

billybiltit.blogspot.com/

www.kzrider.com/forum/5-chassis/325862-triple-tree-custom-work

kzrider.com/forum/5-chassis/294594-frame-bracing?limitstart=0

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06 Feb 2014 12:52 - 06 Feb 2014 12:53 #621340 by NakedFun
Replied by NakedFun on topic Big Bore Kit
I wonder if the sound along with low compression is/was leaking head gasket? It would give a whoosh sound that could be what you are hearing. Thinner between cylinders, warpage on head or cylinder deck....etc. Copper head gaskets take a certain way of torquing, then re torquing after run in. Would account for everything you saw....Just my .02....

Cory
2008 Kawasaki Concours 14
1999 Kawasaki ZRX1100
1976 Kawasaki KZ900
Last edit: 06 Feb 2014 12:53 by NakedFun.

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07 Feb 2014 05:05 #621411 by LarryC
Replied by LarryC on topic Big Bore Kit
A leak down tester would have pinpointed the compression problem & they are not expensive. If you like to work on motors, treat yourself to proper tools.
Larry C.

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07 Feb 2014 10:02 #621442 by gpz1170
Replied by gpz1170 on topic Big Bore Kit
also if you are using a copper head gasket and the cylinder is not O-ringed it will probably leak

don
1974 Z1
1976 KZ900
1978 KZ1000
1981 KZ1000
1983 GPZ1100

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