Tell me all you can about the 2004 CR250R....

JW381
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JW381 6/29/2014 11:34am
6/29/2014 11:34am
bents wrote:
Yes I was thinking that I would check that, thanks. I'm going to lean out the needle one position and look at the power valve while...
Yes I was thinking that I would check that, thanks. I'm going to lean out the needle one position and look at the power valve while I am at it.
I noticed the biggest difference leaning out the needle. Give it a try, you might go back to a 175 or there about.
1
JA946
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JA946 7/24/2014 12:43pm
7/24/2014 12:43pm
Homey55 wrote:
This looks to be the Holy Grail bike here...

http://medford.craigslist.org/mcy/4565538749.html
Except for the 18" rear, and the MASSIVE dent in the pipe, it's a good looking bike.

My CR250R is going well, what was ONCE a "2nd" bike has become more and more a "main" bike. I absolutely love it.

Still not completely settled on jetting, the bike LOVES fuel...TONS of it. I did order several keihin needles to just test out and see how the bike reacts.
MXisLIFE
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MXisLIFE 8/20/2014 5:09am
8/20/2014 5:09am
So I'm starting a complete rebuild due to cracked center case.. I was bs'n one day about how you have to buy a matching set.. Why is this?

The Shop

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JA946
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JA946 8/20/2014 6:42am
8/20/2014 6:42am Edited Date/Time 8/20/2014 6:44am


New pic....

JA946
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JA946 8/20/2014 7:00am
8/20/2014 7:00am
MXisLIFE wrote:
So I'm starting a complete rebuild due to cracked center case.. I was bs'n one day about how you have to buy a matching set.. Why...
So I'm starting a complete rebuild due to cracked center case.. I was bs'n one day about how you have to buy a matching set.. Why is this?
I couldn't tell you, I've read a million times about matched cases, but I would wait for someone much more qualified than me to speak on it.
MXisLIFE
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MXisLIFE 8/20/2014 8:15am
8/20/2014 8:15am
Yea I was always told to have the matching set I just can't remember why and my buddy was asking why.. I wasn't sure if it was for the even wear between the 2.. Thanks anyways!

jeffro503
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jeffro503 8/20/2014 9:45am
8/20/2014 9:45am
I think you guys may have it a little incorrect here." Matching cases " isn't what it sounds like......getting your cases matched means taking the ones you have , getting them machined down and other work if needed for a complete seal. If done correctly it can add a little more more power ( obviously less than what a port job would do ) but it's done to make sure there are no air leaks and so forth. Some cases come from the factory with really small air leaks and so forth , which slightly affects the motors.

That " used " to be the case with the older bikes , but now days I'm not sure any of these newer bikes need it so much. The tolerance levels on these newer machines are a lot tighter i think than the old days. I sent a couple motors to Tom Morgan back in the day 97' - 99' and he did the full port jobs and matched the cases and all the other good stuff. If the bike in question is an older CR 250.....it may benefit from getting the cases matched. Some bikes are worse than others.
JA946
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JA946 8/20/2014 11:09am
8/20/2014 11:09am Edited Date/Time 8/20/2014 11:11am
JA946
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JA946 8/21/2014 11:56am
8/21/2014 11:56am
MXisLIFE wrote:
Yea I was always told to have the matching set I just can't remember why and my buddy was asking why.. I wasn't sure if it...
Yea I was always told to have the matching set I just can't remember why and my buddy was asking why.. I wasn't sure if it was for the even wear between the 2.. Thanks anyways!

I do know that if your buddy orders a case, it comes assembled and complete!
deltadestroyer11 8/21/2014 1:41pm
8/21/2014 1:41pm
An 04 .cr 250 that's in good condition can hang with any modern 450 on any track.
JA946
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JA946 8/21/2014 1:43pm
8/21/2014 1:43pm
deltadestroyer11 wrote:
An 04 .cr 250 that's in good condition can hang with any modern 450 on any track.
Just not with me riding it.
MXisLIFE
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MXisLIFE 8/21/2014 2:39pm
8/21/2014 2:39pm
From where can your cases and they come assembled?
MXisLIFE
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MXisLIFE 8/21/2014 2:42pm
8/21/2014 2:42pm
JA946 wrote:
I do know that if your buddy orders a case, it comes assembled and complete!
Where can you order center cases where they come assembled?

Pit Row

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