Maintenance & Technical > KX500 Steel Frame Conversion (SFC)
Difference between 1989 and 2000 motor for SF conversion
jcm3:
I found a 1999 KX250 with an '89 motor in it on Craigslist and am considering it. I know that I'd probably need to do a lot of work to it, but want to swap out the 89 motor with my 2000 motor since it was just completely rebuilt by Tom Morgan.
I've done a bunch of searches, but am not getting hits probably due to not using the right words.
Does anyone know how the engines are different externally, and what would be required to swap out my 2000 motor in that SF bike? Should I skip this one, or is it a bolt in, or maybe something in between? :wink:
Thanks for any info! I'm hoping to make a choice before he sells it.
jcm3:
Seems like I'm finding some hits that the motors should be the same. Found an old post from Motorrad to back up a post that I found on Thumpertalk.
From what I'm reading, it should be an easy engine swap unless there is something that I don't know about.
http://www.kxriders.com/forums/index.php/topic,10807.0.html
http://www.thumpertalk.com/topic/1052060-kx500-engines/
I'd love to do this!
sandblaster:
I've never tried but I'm sure you could do it.
In fact, I'd look at using the KX125 chassis if I had the opportunity.
jcm3:
--- Quote from: sandblaster on February 26, 2015, 07:40:00 AM ---I've never tried but I'm sure you could do it.
In fact, I'd look at using the KX125 chassis if I had the opportunity.
--- End quote ---
This one should be fairly easy, since it's already been done. :-D I'd just want to swap out his motor for mine.
sintax:
--- Quote from: sandblaster on February 26, 2015, 07:40:00 AM ---I've never tried but I'm sure you could do it.
In fact, I'd look at using the KX125 chassis if I had the opportunity.
--- End quote ---
I tried this, it does not work.
The frame cradle is much much too small.
I tried using a 2004 KX125 rolling chassis for my first attempt at a hybrid. That being said sure you COULD make it work, its only metal after all. But its not a simple affair as using a 250 2stroke frame.
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