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DT125R Forum -> Top End -> Skimming the cylinder head
Post Info TOPIC: Skimming the cylinder head
Ralzy


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Skimming the cylinder head
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800 grit paper WD40 and some decent glass

could always try doing this way

https://www.facebook.com/photo.php?v=10151618002437915



-- Edited by Ralzy on Monday 13th of May 2013 02:52:24 PM

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zander


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I think my top end gasket is broke since my coolant level always drops, and if I dont fill it up, it overheats quite easy...

soo, I ordered home a new top end gasket, but it's been like this since I changed the gasket and I've been to lazy to do smthing about it...
until I read about someone else with this problem and it concluded it was the gasket that was broke

 

anyways, I was thinking of a minor skimming just so it wont be failing again.

any tips or an easy good way to skim at home?



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zander


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oil up the sandpaper with wd40?

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Dt Danny


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i wouldnt use sand paper id use wet and dry :)

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i blew my dt up ... but i fixed it.... Then i crashed it.... but i didnt fix it right and 2 scouser's come in the middle of the night and left me with a working bike 
NEV


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zander wrote:

I think my top end gasket is broke since my coolant level always drops, and if I dont fill it up, it overheats quite easy...

soo, I ordered home a new top end gasket, but it's been like this since I changed the gasket and I've been to lazy to do smthing about it...
until I read about someone else with this problem and it concluded it was the gasket that was broke

 

anyways, I was thinking of a minor skimming just so it wont be failing again.

any tips or an easy good way to skim at home?

 Did you use either a genuine Yamaha gasket, or an Athena gasket, if you used a cheap pattern one, that will be your problem, and you shouldn't need to skim your head.



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zander


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I dont know, I think it was a genuine yamaha gasket cuz i bought it from a yamaha dealer and it costed like 25 euros for top end gasket kit. This time I ordered an Athena gasket for about 17euros from ebay (but it's same manufacturer I heard...?)

I just wanted do a minor skim, just to make sure,
because it's been like this since ever since i changed the gasket and I dont wanna be changing gasket once per month.

But I could check first by putting some oil on the cylinder head and press it against some glass, if it needs skimming..? :)


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NEV


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A good old school way of checking the head that is Zander.

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NORFE


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http://www.youtube.com/watch?v=mTv7KfWtE4g

 

simples

 



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zander


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hehe :D good luck and let's hope it wont break again ;)

hopefully I'll get mine before the end of the week :)


btw u gonna sandpaper ur head or smthing at all?


edit: or wet and dry... over here everything is sandpaper xD



-- Edited by zander on Tuesday 14th of May 2013 04:24:59 PM

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Dt Danny


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Zander i have the same problem as you matey so im getting a new gasket today :D

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i blew my dt up ... but i fixed it.... Then i crashed it.... but i didnt fix it right and 2 scouser's come in the middle of the night and left me with a working bike 
Dt Danny


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haha and if it needs doing i will but im going to check it using the oil and glass :)

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i blew my dt up ... but i fixed it.... Then i crashed it.... but i didnt fix it right and 2 scouser's come in the middle of the night and left me with a working bike 
zander


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okay :D

saw Norfe posted in some other topic, that the biggest reason it breaks, is that you don't retourque the bolts after the first run after the rebuild..
and I dont think I did that.... :P

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Dt Danny


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Neither did I so that's why I'm doing it in college where the tutors can help me and I have the equipment


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i blew my dt up ... but i fixed it.... Then i crashed it.... but i didnt fix it right and 2 scouser's come in the middle of the night and left me with a working bike 
zander


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oh just saw it was your thread as where I read Norfes post.... hehe

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