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250r Questions?

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  #11  
Old 02-24-2003, 03:18 AM
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Default 250r Questions?
so the head is un-cut?
 
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  #12  
Old 02-24-2003, 01:26 PM
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Default 250r Questions?
It will run at 90+, but to be on the safe side, I would rebuild at 110. Since the exhaust is bridged it wears quicker than the rest of the cylinder. If you rebuild it before it is totally blown, you can usually just go the next size over. If the bridge is wore down, you usually have to go farther.
 
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  #13  
Old 02-24-2003, 04:31 PM
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Default 250r Questions?
A STOCK 250R has 170 to 190 of compression. DONT let it get down to 140 or below. thats very bad!
and for an r that has been bored its ganna be alot hier depending on the bore
 
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  #14  
Old 02-24-2003, 06:26 PM
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Default 250r Questions?
i replace my top ring at 20hrs and piston 40hrs. maybe a little less. i only run top ring.
 
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  #15  
Old 02-24-2003, 09:39 PM
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Default 250r Questions?
Originally posted by: liftkit
I just purchased a 250r and have been having a blast on it!!! I have a question on compression.
What is the lowest compression to run before I should rering the engine? This is my second two stroke to own and I am a little rusty on this subject and could use some info.[img]i/expressions/face-icon-small-confused.gif[/img]

There is a thread concerning compression only a few lines down from yours.
There is a lot of info there too.
 
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  #16  
Old 02-24-2003, 10:09 PM
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Default 250r Questions?
I appreciate all the info. I have got a race in Arkansas the 9 of march so i have got to get this thing going. Maybe I will see some of yall there.

Thanks again for the info,
Liftkit
 
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  #17  
Old 02-28-2003, 10:47 AM
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Default 250r Questions?
HEY dose anyone knoe were i can get a 250r eninge from,,,,,
 
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  #18  
Old 02-28-2003, 11:51 AM
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Default 250r Questions?
hard to find. Usually ebay. If you need one and cant find one. I know a guy, he can be a little expensive though. But he has quiet a few of them
 
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  #19  
Old 02-28-2003, 12:47 PM
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Default 250r Questions?
HEY are they new or in good condition
 
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