Yet another 2004 CR250 Rebuild FINISHED

Cmiller493
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Cmiller493
Edited Date/Time 12/25/2014 7:24pm
I have a 2004 cr250 that I recently bought off a friend for 1400 bucks. After I bought it I tore it completely down and as it sits right now it is just a bare frame and I will get it acid washed this weekend. My question for you guys is what you think I should do to it. I am not a very fast guy I am just your average C class motocross racer. I have three options, I can spend a bunch of money on it tricking it out and replacing basically everything to use it as my main bike, I could do a budget build and have it as a backup bike to my 06 yz125, or I could just clean it up real well, sell it for profit and then get a yz250 or 250sx. Let me know what YOU would do if it was your bike! Here are a few pictures as it sits right now and I will post some more after I get the frame and swingarm shined up and a few parts sandblasted.









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7eleven
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7eleven 9/25/2013 4:39pm
9/25/2013 4:39pm
I'd clean it up and sell it, it wasn't in great shape to start with. Take the 2 grand you can get for it and look for a 5,6 or 7. These were better bikes. I found a mint '06 about 5 months ago for $1,800. I rode it last weekend for the fist time and it's like brand new! I have an '03 to compare to as well and the 6 was a fantastic surprise.....

711
Cmiller493
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Cmiller493 9/25/2013 5:48pm
9/25/2013 5:48pm
Think the 5,6,7 Hondas are better than the 6+ yamis? I loved my 2011 yz250 quite a bit.
Travis_Hudson
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Travis_Hudson 9/25/2013 11:14pm
9/25/2013 11:14pm
Get a pwk air striker carb............it will run like a different bike. Wink
7eleven
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7eleven 9/26/2013 11:35am
9/26/2013 11:35am
Cmiller493 wrote:
Think the 5,6,7 Hondas are better than the 6+ yamis? I loved my 2011 yz250 quite a bit.
The Yamaha 250 is legit, so maybe stick with them since you already have the YZ 125. You have to stay on the YZ 250 pistons...They grenade if you push them to far. Not sure what your RPM range is, but mine is high and I would change at 10hrs.

The Shop

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Cmiller493
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Cmiller493 10/9/2013 8:31pm
10/9/2013 8:31pm
Well I decided to rebuild her, haven't spent a whole lot of money as of yet. I sent the suspension off to Racetech and the only things I have bought so far is the airstryker carb and some new radiators. Here are a few updated pictures of the cleanup.





526
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526 10/11/2013 6:03am
10/11/2013 6:03am
Where, what kind or where did you get that venting hose?
captmoto
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captmoto 10/11/2013 9:40pm
10/11/2013 9:40pm
526 wrote:
Where, what kind or where did you get that venting hose?
Looks like the hose that came with the carb kit. It should be available at any dealer. I used the mxbonz hose and clamp kit to get the better clamps for the airboot.
bangmyhead
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bangmyhead 10/12/2013 1:33am
10/12/2013 1:33am
if youre going all out, rebuild the motor crank up, get new nobby's have suspension set up buy a can of race gas and rip it. Some will talk about issues but my 02 ran strong for years
Cmiller493
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Cmiller493 10/15/2013 6:06pm
10/15/2013 6:06pm
526 wrote:
Where, what kind or where did you get that venting hose?
Those vent hoses came with the airstryker carb
Cmiller493
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Cmiller493 10/15/2013 6:09pm
10/15/2013 6:09pm




Suspension is currently getting dialed in at Race Tech.
The motor is completely apart and I definitely need a new crank. Piston has some nasty marks on the exhaust side but the cylinder doesn't seem bad enough to need to be replated. I'm not sure if I am going to get an OEM crank or HotRods..have heard very many good things about Hotrods cranks.
Cmiller493
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Cmiller493 10/20/2013 12:24pm
10/20/2013 12:24pm
Not sure if anybody is even following this thread but I figured I will update anyways....My frame is finally done after hours of scrubbing. The swingarm is very imperfect but I'm not really sure what I can do to make it any better so if ya have any tips please let me know.

CamP
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CamP 10/20/2013 4:02pm
10/20/2013 4:02pm
Cmiller493 wrote:
[URL=http://s1303.photobucket.com/user/cmiller493/media/null_zpsff1d3761.jpg.html][IMG]http://i1303.photobucket.com/albums/ag148/cmiller493/null_zpsff1d3761.jpg[/IMG][/URL] [URL=http://s1303.photobucket.com/user/cmiller493/media/null_zpsede2c731.jpg.html][IMG]http://i1303.photobucket.com/albums/ag148/cmiller493/null_zpsede2c731.jpg[/IMG][/URL] Suspension is currently getting dialed in at Race Tech. The motor is completely apart and I definitely need a new crank. Piston has some...




Suspension is currently getting dialed in at Race Tech.
The motor is completely apart and I definitely need a new crank. Piston has some nasty marks on the exhaust side but the cylinder doesn't seem bad enough to need to be replated. I'm not sure if I am going to get an OEM crank or HotRods..have heard very many good things about Hotrods cranks.
Use an OEM 05-07 crank. It's a better part and it's only $204 through Honda East Toledo.
Cmiller493
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Cmiller493 10/20/2013 4:50pm
10/20/2013 4:50pm
Okay thanks CamP! you are definitely the cr250 guru around here from what I can tell!
theinternetkid 10/21/2013 10:29am
10/21/2013 10:29am
Cmiller493 wrote:
Okay thanks CamP! you are definitely the cr250 guru around here from what I can tell!
Looking good man. I'll be redoing my 06 next month, so watch out for another cr250r thread.
Cmiller493
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Cmiller493 10/23/2013 3:55pm
10/23/2013 3:55pm
Vecchia Scuola wrote:
Lools like it's getting pretty nice.
Good job
Thanks man..a lot of elbow grease is going in to this!
nine1seven
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nine1seven 11/3/2013 3:41am
11/3/2013 3:41am
Love the rebuild thread. Nice work miller!

The stock exhaust flanges crack so I used a Boyesen billet flange. It's a little longer and helps the bottom end. I thought the RAD valve was a nice improvement too. Wish I would have known about the carb swap back then.
Cmiller493
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Cmiller493 11/3/2013 4:29pm
11/3/2013 4:29pm
nine1seven wrote:
Love the rebuild thread. Nice work miller! The stock exhaust flanges crack so I used a Boyesen billet flange. It's a little longer and helps the...
Love the rebuild thread. Nice work miller!

The stock exhaust flanges crack so I used a Boyesen billet flange. It's a little longer and helps the bottom end. I thought the RAD valve was a nice improvement too. Wish I would have known about the carb swap back then.
I appreciate that! and yeah my exhaust flange isn't cracked but I will probably get a new one anyways. Im probably going to keep the stock reeds, only for that fact that they are in perfect condition. I just got a sweet complete stainless steel polished bolt kit for a helluva price on ebay. Now I just need to get my cases soda blasted and get the motor rebuilt and I can get this project rollin along.

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beamer
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beamer 11/4/2013 7:09am
11/4/2013 7:09am
Looking good , I have the same issues with my swing arm off my Suzuki, ill let you know if I find something that works real good. Stupid question, whats the difference from sand blasting to soda blasting??
lumpy790
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lumpy790 11/4/2013 6:48pm
11/4/2013 6:48pm Edited Date/Time 11/4/2013 6:59pm
526 wrote:
Where, what kind or where did you get that venting hose?
We have the stock translucent pink hose

Cmiller493
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Cmiller493 11/5/2013 7:38pm
11/5/2013 7:38pm
beamer wrote:
Looking good , I have the same issues with my swing arm off my Suzuki, ill let you know if I find something that works real...
Looking good , I have the same issues with my swing arm off my Suzuki, ill let you know if I find something that works real good. Stupid question, whats the difference from sand blasting to soda blasting??
Sand is using actual sand, soda blasting is baking soda.
Cmiller493
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Cmiller493 11/6/2013 7:39pm
11/6/2013 7:39pm


Complete stainless steel polished bolt kit minus axels.
Travis_Hudson
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Travis_Hudson 11/8/2013 4:43pm
11/8/2013 4:43pm
Cmiller493 wrote:
Not sure if anybody is even following this thread but I figured I will update anyways....My frame is finally done after hours of scrubbing. The swingarm...
Not sure if anybody is even following this thread but I figured I will update anyways....My frame is finally done after hours of scrubbing. The swingarm is very imperfect but I'm not really sure what I can do to make it any better so if ya have any tips please let me know.

Good job on the frame man, my swing arm was pretty beat up. I ended up sanding the whole thing to try and bring back the factory brushed look. It basalt of work but it looks way better now.
Cmiller493
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Cmiller493 11/8/2013 6:07pm
11/8/2013 6:07pm
Thanks Travis! If you don't mind me asking, what grit did you start with and did you start with and did you do it all by hand or did you use a palm sander also? I asked Blake Young and he told me DO NOT use a power sander but then I saw an instagram picture of Jordan Troxell (TLD Mechanic) using a belt sander on his swingarm so it got me thinking.
Moto619
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Moto619 11/10/2013 2:57pm
11/10/2013 2:57pm
Cmiller493 wrote:
[URL=http://s1303.photobucket.com/user/cmiller493/media/null_zpsd60d6692.jpg.html][IMG]http://i1303.photobucket.com/albums/ag148/cmiller493/null_zpsd60d6692.jpg[/IMG][/URL] Complete stainless steel polished bolt kit minus axels.


Complete stainless steel polished bolt kit minus axels.
Hey mate you have done a great job on your frame, did you soda blast it? That stainless bolt kit, does it come as a kit or did you have to order each bolt size? Did you get the bolts off ebay? Thanks for your help
Cmiller493
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Cmiller493 11/10/2013 5:06pm
11/10/2013 5:06pm
Moto619 wrote:
Hey mate you have done a great job on your frame, did you soda blast it? That stainless bolt kit, does it come as a kit...
Hey mate you have done a great job on your frame, did you soda blast it? That stainless bolt kit, does it come as a kit or did you have to order each bolt size? Did you get the bolts off ebay? Thanks for your help
Thanks man, no I did not soda blast it, just a lot of scrubbing. The bolt kit came as a complete kit on ebay. If you search for stainless steel polished bolt kit, followed by whichever bike you want it for, they have them for most bikes. Any other questions just let me know.
Cmiller493
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Cmiller493 12/21/2013 6:05pm
12/21/2013 6:05pm
Sorry for the lack of posts guys. Really havent gotten anywhere in the actual build because it is cold as heck and have no desire to go out and spin wrenches in my 20 degree garage. Just have been slowly gathering parts. I have all of my motor parts, clutch parts, and just bought some red applied clamps and I think I'm going to get some HRC oversized bar mounts. I had my cylinder replated and suspension revalved and resprung. Parts I still need to get are wheels, chain and sprocket, bars, levers, throttle assembly, and a few other trick bits. Here is another picture of my frame and my graphics kit I just put on today.




Travis_Hudson
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Travis_Hudson 12/23/2013 7:52am
12/23/2013 7:52am
Cmiller493 wrote:
Thanks Travis! If you don't mind me asking, what grit did you start with and did you start with and did you do it all by...
Thanks Travis! If you don't mind me asking, what grit did you start with and did you start with and did you do it all by hand or did you use a palm sander also? I asked Blake Young and he told me DO NOT use a power sander but then I saw an instagram picture of Jordan Troxell (TLD Mechanic) using a belt sander on his swingarm so it got me thinking.
I started with 120 grit on a disk with a cordless drill to get the nasty out of the way and worked up to 1500 by hand. It was a lot of work, but looks pretty legit now. Good job on the bike so far. Should be pretty sweet when done. Smile
Cmiller493
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Cmiller493 12/23/2013 3:16pm
12/23/2013 3:16pm


I ended up getting the swingarm sandblasted and I am now going to go through some stages of scotchbrite and sandpaper until I get the finish I want.
Travis_Hudson
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Travis_Hudson 12/23/2013 10:26pm
12/23/2013 10:26pm
Good deal man, crack a couple cold ones and take your time. Totally worth it though.

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