Maintenance & Technical > KX500 Steel Frame Conversion (SFC)
Looking for input on stuffing a 500 into a 95 kx250 frame
Suva:
Been reading up on the subject a lot for my own upcoming conversion. Seems the '89-up cr5 pipe is the one to use. The rest, ? Wanting to use my k5 swing arm, would rather have the extra length (small as it is) and somehow not drilling out my engine makes me feel better. You ever decide on that issue?
Suva:
Well, after ripping both bikes apart last night, length issue is moot, but the k5's sa is noticeably lighter than the 01 250's is
junk man:
goat what 250 parts do you have. If you use a 95 frame you will have to use 94-98 body parts tank plastic seat etc. if your going to use all the 500 parts you can i can list the 250 parts you will need
note i used a 2000 frame and was going to use 98 body parts they don't interchange
using 500 swing arm its no big deal if you can weld good or have a new swing arm bolt and two shouldered washers made at a machine shop. the swing arm bolt is almost to short if you make a longer bolt you can use two stepped washers and bolt it all together the next thing you have to do is make two spacers for between the engine and swing arm ( i use two grade 8 washers on each side) the 500 link mounts between the engine and swing arm so you will have to fill in the gap. I used the stock 250 link but used my 500 struts.the 500 struts are 1/2 longer than the 250's this will give you correct ride height and the last thing i used 250 spring i tried my 500 spring way to stiff
hope this helps out JM
Goat:
Thanks Junk Man.
I didn't do any cutting yet. Tried to fit what few parts I do have and found out quite a few parts I got with the frame are not for that frame. Rear shock in perfect condition is the exact same as the one on my 500 and will not fit in between the upper mounting tabs. Linkage is identical to my 91 KDX and will not fit. So this project is turning into a bust.
I'm now thinking about buying a 2000ish + complete 250 for the donor and sell the 250 engine or build another quad with it. Not sure. Don't have the kind of cash I need for the project at the moment. Also looking to move a couple hours south to find a better job as well.
If anyone is interested I could package the frame, and subframe up and ship them. Make me an offer.
junk man:
Goat if you have a downer makes things a lot easier maybe one day JM
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