Maintenance & Technical > KX500 Steel Frame Conversion (SFC)

Anybody ever convert an 05 or o6 KX250 2stroker

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jBernard:
73hp.....seriously?

8.5hp MORE than another brand. i have seen their dune pipe before and obviously they are gutless down low and screamed up top. but i wish they had better data of lower 2-5k rpms on those dyno charts, looks like it was skipping or something on the dyno, since graph isnt smooth.

The Flyin Hawaiian:
The 05-07 KX250 2t chassis swap should be very similar to the 03-04 swap. I built one using a 04 chassis. I also have a 07 KX250 and have eyed up the frames and it looks pretty straight forward. The 05-07 frames are narrower at the footpegs than the 03-04 frame but I dont think that will cause an issue. 

81cr450:

--- Quote from: jBernard on November 02, 2013, 07:35:20 PM ---73hp.....seriously?

8.5hp MORE than another brand. i have seen their dune pipe before and obviously they are gutless down low and screamed up top. but i wish they had better data of lower 2-5k rpms on those dyno charts, looks like it was skipping or something on the dyno, since graph isnt smooth.



--- End quote ---

They do runny s**tty down low but come on really quick. Just seem pig rich on the pilot & then clean right up as rpms just start to climb 

Rd:
Thanks guys.
 Flying Hawaiian or anyone do you think there is any real advantage to using the 05 thru 07 bikes over the early ones
say 98 to 04 ?   Seems 99 and 00 are available at good prices fairly often.

The Flyin Hawaiian:
I have a 03, 04 and a 07 KX250. The best handling bike of the bunch is the 04. When Kawasaki revamped the 250 in 05 they gave it a new frame, engine etc. It was a pretty good handling bike. They messed it up in 06. They brought the steering head angle in a bit and screwed up the handling. There is a thread here in the 250 section that addresses this issue. I just couldnt trust the front end to stick. Im hoping to fix my 07 this winter (thought I was going to do it last winter) by having the steering head cut and change the steering head angle. I would go for a 03-05 over a 06-07. My 04 250/500 handles great! Its strictly a tight woods bike and handles so much better than the old 500 chassis. I cant comment on previous year KX250s since I have not owned the 94-02s.

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