2001 YZ250 Hybrid??

Discussion for swapping a KDX motor in a MX frame...
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sea426
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2001 YZ250 Hybrid??

Post by sea426 »

I have a 1991 KDX200. Got it from a friend for a good deal, but the ergos suck for me (6'2"). I have been reading a bunch here in the hybrid forum. I really want to put together a hybrid. Haven't had much luck locating a reasonable priced 99-02 or 03+ KX125 locally.
I scored a roller '01 YZ250. Is this reinventing the wheel to try this green/blue swap? Preliminary measurements look like I would have to remove about 3/8ths from each side of the swingarm to clear the KDX cases. Anyone know of a Yamaha hybrid.
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scheckaet
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Post by scheckaet »

u might be the 1st to try it. There is a lot of kx kdx and a few cr kdx for the H serie hybrid done already. I think I've seen 2 done with the E model, I'd say go for it and good luck. Sounds like a fun build to follow.
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Tedh98
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Post by Tedh98 »

Please take and post a lot of pictures.
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Coop
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Post by Coop »

Good luck and take lots of pictures.
"Twenty years from now, you will be more disappointed by the things that you didn't do than by the ones you did do" - Mark Twain

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fuzzy
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Post by fuzzy »

Search on here....I think someone built one, but never posted too much about it. Gotta make a great bike. People have done aluminum CR's etc so the yami can't be too bad.
'91 KDX 200 Project $300 KDX
'95 KDX 200 Project $600 KDX
'94 WR 250 Always a project
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doctord23
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Post by doctord23 »

I think I remember reading about an issue with cutting the swingarm and it not being solid. Try a search.
My Team Green:
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Tedh98
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Post by Tedh98 »

>|<>QBB<
doctord23 wrote:I think I remember reading about an issue with cutting the swingarm and it not being solid. Try a search.
That was me.

http://www.kdxrider.net/forums/viewtopi ... ghlight=yz
sea426
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Post by sea426 »

I am going to spend some time out in the garage this weekend with a tape and calipers. Thanks for the link Tedh98. My fabricator buddy wants to do this as much as i do. We'll see if we can come up with a solution on the swingarm cavity. Maybe this will end up being a fork swap on my DR650...
sea426
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Post by sea426 »

Thought I would give an update. Now I have USD forks on my DR650 :grin: Looks good, now i have to do some tweaking on the forks, get new wheel bearings and a Vapor computer.

Looks like the kdx/yz swap may have been possible if I mounted the motor/swingarm like a TRX 250R. Mount the swingarm and motor seperately using a bracket/sleeve off the frame. Mounting the motor like this wouldnt have left much room and I dont have a spare motor to mock up.

Back to my search for a KX or CR for cheap.
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