KX Riders

Maintenance & Technical => KX250 / KX125 => Topic started by: DP3601 on April 24, 2017, 09:20:48 AM

Title: 2004 KX 250 Rebuild
Post by: DP3601 on April 24, 2017, 09:20:48 AM
I finally found a 2004 KX 250 that I can spend some time to clean up.  It is a little rough but for the price I couldnt pass it up.  The engine was completely rebuild by a dealer, he provided the bill and I called the dealer to verify it.  Engine wise I should be good to go.
(https://i.imgur.com/w7PoKtu.jpg)

(https://i.imgur.com/FAdhlZv.jpg)


Title: Re: 2004 KX 250 Rebuild
Post by: sandblaster on April 24, 2017, 09:29:40 AM
(http://i1043.photobucket.com/albums/b431/DP8201/20170424_153434_zps6fpmrzxy.jpg)

Cause they want to go riding really bad, didn't plan ahead, waited till the last second, didn't want to buy new parts because their second cousin thrice removed had the same bike in parts... ect ect..  :lol:
Title: Re: 2004 KX 250 Rebuild
Post by: DP3601 on April 24, 2017, 09:34:03 AM
(http://i1043.photobucket.com/albums/b431/DP8201/20170424_153434_zps6fpmrzxy.jpg)

Cause they want to go riding really bad, didn't plan ahead, waited till the last second, didn't want to buy new parts because their second cousin thrice removed had the same bike in parts... ect ect..  :lol:

I have to say at least they used all of the correct threads and everything is in tact that way.  I will have to be a happy guy with that! :-D
Title: Re: 2004 KX 250 Rebuild
Post by: DP3601 on April 24, 2017, 09:48:50 AM
(https://i.imgur.com/pT2TLnq.jpg)
(https://i.imgur.com/DhwT0RD.jpg)
This is the first question I have if anyone has some insight.  This doesnt look broken off where the brake slides on but it does look worn down.  Shouldnt it be alot taller of a edge to keep the brake in place?

Also wasnt 2004 the one of the years that Kawasaki and Suzuki had their partnership and shared parts?
Title: Re: 2004 KX 250 Rebuild
Post by: umberto on April 24, 2017, 10:00:23 AM
Man I love my 04, they're great bikes.  I think the 03s handle a little better, but the 04s run better.

I have seen some pretty crazy things people do to dirt bikes on the few flips I have done.  My son and I call it getting Craiged, both to honor a guy we knew that was rough on his bikes and Craigslist in general.  It's always fun to spot where someone got Craiged on their bike, and make them find it too.  Sounds like the mystery parts are the only Craiging you got on this bike.  It looks really nice.
Title: Re: 2004 KX 250 Rebuild
Post by: Foxx4Beaver on April 24, 2017, 10:23:59 AM
Nice score DP.

When I got my '00 that was in pieces a few years ago...that belonged to a 14yo kid, I had the same mess of parts that didn't go with the bike. The biggest was the expansion chamber....it had an FMF pipe from a '94 KX250...I realized it once it got to that point in the assembly, when none of the mounts where lining up. Then it donned on me, why both spring eyelets on the cylinder where worn right through from the springs....cause that's all that was holdin the dam pipe on. sigh 
Title: Re: 2004 KX 250 Rebuild
Post by: DP3601 on April 24, 2017, 10:56:18 AM
I think Ill add Craiged to my vocabulary Umberto!  :-D  and Ill bet that thing had some good vibration to it Foxx!   I know I am gonna find something on this bike that bites me but so far just the swing arm in the only thing I am concerned about! 
Title: Re: 2004 KX 250 Rebuild
Post by: Foxx4Beaver on April 24, 2017, 11:02:45 AM
and Ill bet that thing had some good vibration to it Foxx!   

honestly I don't know...I got it in boxes...but after dropping $3500 into it...it literally sounds like it came off the showroom floor...absolutely zero rattles. It's amazing.
Title: Re: 2004 KX 250 Rebuild
Post by: DP3601 on April 26, 2017, 05:40:58 AM
(https://i.imgur.com/4CSyMl6.jpg)

Well here is a big surprise.  Called the dealer that I talked to initially when I bought the bike and questioned why they didn't mention this.  They reassured me that it was repaired well and the engine had no leaks.  I have yet to do a leak down test on it to make sure.  

Anyone have any experience with something like this or would I be better to find a new case half and replace it?  Checked on a new one from Kawasaki and they come as a set for nice price of $532 :-o
Title: Re: 2004 KX 250 Rebuild
Post by: sandblaster on April 26, 2017, 07:05:14 AM
I have repaired many, many cases with no issues.
You do need to machine the mating surfaces and or lap them to make sure they seal well.
Title: Re: 2004 KX 250 Rebuild
Post by: DP3601 on April 26, 2017, 07:14:05 AM
I have repaired many, many cases with no issues.
You do need to machine the mating surfaces and or lap them to make sure they seal well.


Thanks Sandblaster you let my anxiety go down a bit! I will do a leak down test and if it checks out then it should be good to go for now on the engine.
Title: Re: 2004 KX 250 Rebuild
Post by: DP3601 on May 20, 2017, 12:30:02 AM
I finally got a chance to spend some time on this thing the past week.  The good news is I did a leak down test and the engine is tight!  Big relief and a job well done from the guy that fixed the cases on this thing in the past!  I would buy him a few cold beverages if I knew who he was. :-D

(http://i1043.photobucket.com/albums/b431/DP8201/IMG_20170519_200018_649_zpsbbgxpaxd.jpg)
I worked on the linkage and got it looking alot better then stock.  I have a little touching up to do but definitely better.
Title: Re: 2004 KX 250 Rebuild
Post by: zz3gmc on May 20, 2017, 03:27:08 AM
I just picked up a 04 KX250 basket case. May have it up next year as a 300.
Title: Re: 2004 KX 250 Rebuild
Post by: DP3601 on May 20, 2017, 07:17:55 AM
I just picked up a 04 KX250 basket case. May have it up next year as a 300.


Are you posting pics on here zz3gmc as you do it?  I would like to see how your coming along with it over time!
Title: Re: 2004 KX 250 Rebuild
Post by: umberto on May 20, 2017, 07:43:30 AM
I just picked up a 04 KX250 basket case. May have it up next year as a 300.

Who makes a 300 kit for it?  Just asking for a, uh, friend, yeah, friend.   :-D
Title: Re: 2004 KX 250 Rebuild
Post by: DP3601 on May 20, 2017, 08:07:12 AM
I just picked up a 04 KX250 basket case. May have it up next year as a 300.

Who makes a 300 kit for it?  Just asking for a, uh, friend, yeah, friend.   :-D

Someones ears just perked up.....Ha
Title: Re: 2004 KX 250 Rebuild
Post by: DP3601 on June 05, 2017, 12:12:51 AM
The left side radiator is twisted on this thing.  Does anyone know of anyone good that can rebuild these or is it better to replace them.   If so who would you guys recommend to get a new one from.   

Thanks guys
Title: Re: 2004 KX 250 Rebuild
Post by: sandblaster on June 05, 2017, 01:15:28 AM
http://www.oem-cycle.com/forum/viewtopic.php?f=40&t=136&hilit=radiator (http://www.oem-cycle.com/forum/viewtopic.php?f=40&t=136&hilit=radiator)
Title: Re: 2004 KX 250 Rebuild
Post by: zz3gmc on June 05, 2017, 01:16:15 PM
Powerseal USA did the 295 kit. The bike is supposed to be a backup to my wifes 04 KX300 or 295 but after she rode my recently refurbed 04 KX250/500 she may want one for herself! As far as pics of the rebuild Ill try to remember but I usually dont take too many pics during any builds.
Title: Re: 2004 KX 250 Rebuild
Post by: DP3601 on June 06, 2017, 09:35:20 AM
http://www.oem-cycle.com/forum/viewtopic.php?f=40&t=136&hilit=radiator (http://www.oem-cycle.com/forum/viewtopic.php?f=40&t=136&hilit=radiator)

Thanks I think I can do that!
Title: Re: 2004 KX 250 Rebuild
Post by: DP3601 on July 07, 2017, 05:18:00 AM
I am finally getting back to working on this thing.  Took a dirt sample and have been down and out with the bum shoulder, but I was at a race last weekend and talked to a guy that had done the conversion on his 04 KX250 to the 2017 plastic.    He inspired me to get the 2017 plastics to fit.    Great guy and gave me lots of information. 


I have found most of the parts but still am in need of a 2016/17 kx450f fuel tank and air box assembly.   Does anyone have one of these just laying around they would want to part with? 
Title: Re: 2004 KX 250 Rebuild
Post by: DP3601 on July 30, 2017, 04:26:56 AM
I was getting ready to post updated pics of the 250 but photo bucket isnt letting me do that anymore.  Is there a different way to do this?
Title: Re: 2004 KX 250 Rebuild
Post by: umberto on July 30, 2017, 04:53:18 AM
I'm working on some things.  Photobucket just decided overnight to disable their third party hosting for everyone that uses the site.  You can still view the pictures by right clicking on the picture and opening in a new window or page.  There are a couple of other sites that host pictures, we just need to put instructions out there on how to do them.  I'm going on vacation this week, so it will be mid August before I can get anything together.
Title: Re: 2004 KX 250 Rebuild
Post by: DP3601 on October 31, 2017, 11:09:40 PM
Back to working on this thing, I had a little shoulder issue from a riding incident that slowed me down.  Finally glad to have use of the wing again
(https://i.imgur.com/8TsARHt.jpg)
Title: Re: 2004 KX 250 Rebuild
Post by: DP3601 on October 31, 2017, 11:11:32 PM
I worked on the linkage some more and got a lot better finish to it, alot of hand work but man it turned out good!
(https://i.imgur.com/5ze3beY.jpg)
(https://i.imgur.com/It00G6i.jpg)
Title: Re: 2004 KX 250 Rebuild
Post by: DP3601 on October 31, 2017, 11:13:02 PM
Also had a buddy get the engine looking better than it has in years!
(https://i.imgur.com/ZxJmw0O.jpg)
(https://i.imgur.com/uy4pPaU.jpg)
Title: Re: 2004 KX 250 Rebuild
Post by: DP3601 on November 08, 2017, 12:47:05 PM
I am trying to find the air boot that comes off the carb to the air box on this 2004 KX250.  Kawasaki has no more in stock new.  I have found a couple on ebay etc but was wondering how much did they change them between 04 and 05?  The part numbers are different but look similar.  Any ideas or anyone have any information on this? 
Title: Re: 2004 KX 250 Rebuild
Post by: sandblaster on November 08, 2017, 01:12:44 PM
I believe 05-08 use a different style then the 04 and earlier.
Would they still bolt up?
I'd look at the gasket interchange info but my bet is that they are significantly different...
Someone on here knows for sure...