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Old 01-26-2014, 06:16 AM   #1
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The Official Honda CRF250R/CRF250X Thread

According to the search results, there is no central thread for these great little bikes, so I am making one.



A review of the 250X from dirtbike magazine: http://www.dirtbikemagazine.com/ME2/...6E31F1CB5D381B

Resources:

Specifications:

http://crfsonly.com/specs-250.php

Thumpertalk forums for the CRFs
http://www.thumpertalk.com/forum/41-crf250r/
http://www.thumpertalk.com/forum/81-crf250x/

Rick Ramsey's excellent CRF250X page: http://www.rickramsey.net/CRF250X.htm

ADV CRF Threads:

A short discussion on which one to choose: CRF250R or 250X

CRF250R
James Bond 007 Rides Honda CRF250R in Skyfall

CRF250X

Honda CRF250X opinions please
XR250L, CRF250L and CRF250X Comparison
CRF250x VS Husqvarna TXC250
Honda CRF250X for allday bike?
CRF250X Questions
CRF250X for Trans Am Trail?
CRF250X front end on the XRL
XR250R or new CRF250X
XR400 vs CRF450X vs CRF250X
My Motard CRF250X
CA Model CRF250X Info Needed
Any Street Legal CRF250X or 450X's ??
revloc or rekluse for crf250x
Any Honda CRF250X owners here?
Nice little CRF250X review...


This is my 2007 CRF250X. It is new to me, and I have been busy going through it top to bottom.



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nuggets screwed with this post 01-26-2014 at 08:21 AM Reason: Add more info
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Old 01-26-2014, 08:40 AM   #2
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AIS Removal

All 2007+ CRF250X and Cali model 250X bikes have the Air Injection System. The system injects fresh air from the airbox into the exhaust stream. Removing this should not change the performance of the bike, but it will lighten it by 13.25 ounces in my case.

The system uses intake vacuum to power an air pump which pumps air from the airbox to the exhaust.

This shows the AIS pump, and hoses.


First, I cut the steel hose off of the plate the supplies air to the exhaust. I cleaned that up, and then filled it with JB Weld.







Next, I cut the hose that gets intake vacuum to the AIS pump, and plugged it.


Next, I pulled the AIS fitting out of the airbox.




Finally, I used some thermoplastic to make a plug for the airbox.

Hot soft plug


Cool hard plug


That is all it takes.

The plastic I used is called Polycaprolactone. It is a thermoplastic that softens and turns clear at 140 degrees F. When hard, it is a lot like Nylon.
http://www.amazon.com/Missing-Link-M...g+link+plastic

I carry the stuff in my trail kit when camping off of the bike, so I can make repairs to plastic parts if needed.

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Old 01-31-2014, 08:00 PM   #3
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Love my 2005 CFR250x. Bike is a ton of fun and I'm enjoying a whole lot more than the DRZ400 I had before.
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Old 02-02-2014, 09:54 AM   #4
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Love my 2005 CFR250x. Bike is a ton of fun and I'm enjoying a whole lot more than the DRZ400 I had before.

Any pics? How do you use it?
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Old 02-02-2014, 11:09 AM   #5
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Suspension rebuild on my CRF250X:


Taking the cap off of the shock.


I found this issue with my shock . New seals won't fix this.


The nick means I need to replace the rod. That's a $250 part. NOPE!

I ordered a $60 CRF250R shock off of Ebay to get the part I need, and I'll swap the valves from this shock into it when it gets here, and build a new shock from all the best bits.

Here is what a shock looks like in pieces. They are not hard to disassemble.


Since I had to wait for parts for the shock, I started on the forks.




After, I got the forks buttoned up, I finished the shock.

Here, I am getting ready to put the X valving onto the R shock shaft. Note the new bumper.


Shock internals ready for installation into the shock body.


And the shock installed.
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Old 02-02-2014, 05:47 PM   #6
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Here is mine.

CRF-250X
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Old 02-09-2014, 08:02 AM   #7
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That's a sweet ride Ted. Is that an 07? I see it has the AIS system on it.

I had a massive MBS flare up yesterday, and this thing followed me home:



So before I get too distracted, I have to finish up my CRF.

Here she is:





I am working on reinstalling the wiring harness, then I will just need to install the fuel tank and plastics, and fill her with fresh fluids. Almost ready to rock.

I was going to plate the CRF and use it for my small bore adventure bike, but the arrival of the KTM has changed that plan. Looks like the CRF will be my singletrack bike.
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Old 02-09-2014, 10:13 AM   #8
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Nugget, that shock will be much easier to remove if you re-install the upper shock bolt as it came from the factory. Your photo shows yours is in backwards. It will have interference from the reservoir as it is now. Not a biggie, just one of those little detail things.
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Old 02-09-2014, 10:26 AM   #9
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Nugget, that shock will be much easier to remove if you re-install the upper shock bolt as it came from the factory. Your photo shows yours is in backwards. It will have interference from the reservoir as it is now. Not a biggie, just one of those little detail things.
Do you mean the bolt where the top of the shock attaches to the frame as seen here?


There is only one way to install it. The head of the bolt is shaped, and the frame is machined to hold the bolt head.
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Old 02-12-2014, 06:26 PM   #10
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Great work

Looks great. We are working on one currently as we'll. this will be my second.
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Old 02-12-2014, 06:59 PM   #11
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Quote:
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That's a sweet ride Ted. Is that an 07? I see it has the AIS system on it.

It's a 2012. The AIS is long gone.

Did you make any changes to your valve stack? I picked up a used shock/forks, to test my rebuilding skills on. This is a timely thread.

Speaking of orange, I hope the X does not get jealous.

KTM350exc-1200
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Old 02-12-2014, 07:28 PM   #12
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Quote:
Originally Posted by TedG540 View Post
It's a 2012. The AIS is long gone.

Did you make any changes to your valve stack? I picked up a used shock/forks, to test my rebuilding skills on. This is a timely thread.

Speaking of orange, I hope the X does not get jealous.
I didn't change the valve stack. I just swapped the X valving onto the R damper rod.

I did end up having to get a machine shop to fix the threads on the damper rod. They are deformed from the factory. The service manual said to use a die to clean them up, but it wasn't working.
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Old 02-12-2014, 07:34 PM   #13
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Where in VA are you located?
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Old 02-13-2014, 04:57 AM   #14
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Where in VA are you located?
Down by the mouth of the Bay. I'll be living off of one of my bikes up in the National Forest for a week this summer
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Old 06-07-2014, 06:58 PM   #15
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Here's mine. 2004. It's plated, pro circuit TI pipe, some other goodies. I came off a WRR to this, and wow, it's night and day. I'm stoked so far.



Rode some Hatfield McCoy trails in WV this week:

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