head gasket mod?

Post here on any modifications you have done, or have found for the Kawi

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tribulation138
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head gasket mod?

Postby tribulation138 » Thu Apr 14, 2011 8:45 pm

Anybody remove there gasket totally or put a smaller one in to have more compression?
If you have, how hard is it and what kind of job am I looking at?
I have to many mods to post here.
djrussell
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Re: head gasket mod?

Postby djrussell » Fri Apr 15, 2011 11:24 am

i remember gary saying that you could remove the middle layer and use yamabond in its place.
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cra116
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Re: head gasket mod?

Postby cra116 » Mon Apr 18, 2011 5:28 pm

Yes just the middle layer if you go any more you'll have clearance issues on a stock head!!!
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planetarysuicide
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Re: head gasket mod?

Postby planetarysuicide » Tue Apr 19, 2011 10:54 am

:newbie i am also intrested in this mod. Image im going to be putting this motor into a custom hillclimber. lots of guys run them on nitro, or shoot nitrous but this motor only has 810 miles on it and i want it to last forever. plus the power of nitrous is only at wot and i preffer power everywhere.
a little more insight on the middle gasket would be nice.... do we need to use yamabond?
crf450 hillclimber, cr500 hillclimber, cbr 954 hillclimber, gsxr 600 commuter
07 ex 650 hillclimber in the making
and a bunch of 4 wheel things no one cares about....
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tribulation138
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Re: head gasket mod?

Postby tribulation138 » Tue Apr 19, 2011 4:00 pm

maybe ill buy a new gasket online. it seems easy to do. plus it looks like i dont have to take the whole bike apart to do it
I have to many mods to post here.
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tribulation138
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Re: head gasket mod?

Postby tribulation138 » Tue Apr 19, 2011 7:38 pm

actually i just looked at the engine diagram. there is three gaskets. which one do you mod? theres the cover gasket a middle one and lower base one.
I have to many mods to post here.
djrussell
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Re: head gasket mod?

Postby djrussell » Wed Apr 20, 2011 10:46 am

read the first two responses. :cycle
951_ninjarider
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Re: head gasket mod?

Postby 951_ninjarider » Wed Apr 20, 2011 2:16 pm

I have been thinking of doing this mod for some time now and i think its time. Does anyone know the torque specs on the head bolts and the torque pattern?
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Addohm
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Re: head gasket mod?

Postby Addohm » Wed Apr 20, 2011 2:39 pm

:stupid

You don't have a service manual?
http://homepages.slingshot.co.nz/~shane ... _&_Parts_1

Chapter 2 for torque specs.

Chapter 5 for engine top end service. I believe the torque pattern is in there.
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tribulation138
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Re: head gasket mod?

Postby tribulation138 » Wed Apr 20, 2011 4:02 pm

oh ok. thanx guys
I have to many mods to post here.
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BRP
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Re: head gasket mod?

Postby BRP » Thu Apr 21, 2011 3:35 pm

Yikes. If you're going to go through all the trouble of removing the head,
why not do a valve job at the very least. Raising the compression is not going
to do much with valves leaking.
Then you should have the head decked to make sure it's flat.
Then if you're doing a valve job, why not clean up the ports.
Now put it back together and feel the difference.
As far as the gasket mod: It's best to start with a new gasket.
You drill the rivets that hold the layers together.
Remove the center gasket. I use http://www.scegaskets.com/K-W-Copper-Coat-p6650081.html
Spray the two mating sides and once tack is setting, put them together.
We only run the center gasket .
sharper
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Re: head gasket mod?

Postby sharper » Thu Dec 24, 2015 4:37 pm

BRP wrote:Yikes. If you're going to go through all the trouble of removing the head,
why not do a valve job at the very least. Raising the compression is not going
to do much with valves leaking.
Then you should have the head decked to make sure it's flat.
Then if you're doing a valve job, why not clean up the ports.
Now put it back together and feel the difference.
As far as the gasket mod: It's best to start with a new gasket.
You drill the rivets that hold the layers together.
Remove the center gasket. I use http://www.scegaskets.com/K-W-Copper-Coat-p6650081.html
Spray the two mating sides and once tack is setting, put them together.
We only run the center gasket .



Just to clarify this, I am confused by the last statement. So the only portion of the head gasket that gets used is the center piece? The two outside pieces (coated with teflon or some black coating) get discarded?

Sorry for digging up these old threads. This seems to be the only place with good information.

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