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David_Darkes David_Darkes
3/1/2018 12:47 PM

Does anyone have any info on how to or if i can get a 500cc engine into a 2002 cr250 frame.

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omalley omalley
3/1/2018 3:17 PM

If you’re talking CR500 engine, there’s conversion kits available but you’ll have to do some fab work and engineering. Most of the info is out there between here and a couple other boards.

Oh, and a couple folks will probably be along to tell you who NOT to use-or you could check in some of the other forums on here, say, near the bottom of the forum list...

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lengyel395 lengyel395
3/1/2018 8:04 PM

Run the steel frame with modern forks on it. Aluminum conversion vibrates like crap

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Byron909 Byron909
3/1/2018 10:49 PM

Thats a good chassis to convert. Doesnt really do anything bad. My favorite aluminum honda frame for a swap.
Not much is needed, compared to others to get it all right.
The lower mount is right already. You need to move the wye up and make new front mounts.
The front silencer mount needs to go back a hair. No changes to airbox, although you should look into a beefier flange for the boot. Those leak.
If you want to buy a kit, look here!/Chassis-02-07-CR250/c/5270710/offset=0&sort=normal
Here is a old photo of one of my favorite 02-07 conversions of mine. Great bike

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David_Darkes David_Darkes
3/1/2018 11:40 PM
Byron909 wrote:

Thats a good chassis to ...more

Thanks for the info. And that is one loveley machine.

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Loc Loc
3/2/2018 2:13 AM

just make a proper headstay and vibrations won't be an issue.

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