Maintenance & Technical > KX500 Steel Frame Conversion (SFC)

Steel frame engine fitment (03-04 KX250 2t)

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The Flyin Hawaiian:
I have my 500 engine sitting in my 04 250 frame and have a few questions. Those that have done the 99-02 conversion, can a top end job be done with the engine in the frame? My head stay is mounted in the back, but it looks too close to the cylinder, its actually hitting the head stay on the head. I havent cut the front frame mounts yet, it looks like with them removed I may have the room to remove the topend w/o removing the engine. Any opinions would be greatly appreciated.
Some pics.

BDI:
On my 02 kx250/500 I have to remove the two front head studs to get the jug off. It's a minor inconvenience but yes the top end can be done in the frame, atleast with my 02 it can.

doordie:
Put in helicoil(steel) threads in the two fronthead holes and use a bolt instead for stock studs,otherwise you were out aluminiumthreads in barell when you have to
do a topend. :wink:

doordie:
KX250/500-03 hybrid solutions.

The Flyin Hawaiian:
Thanks alot Doordie! :-D

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