Wide Ratio trans?

6 replies to this topic
  • treebasher

Posted January 18, 2006 - 04:08 PM


Has anyone ever done or know of someone who has put a WR trans in a YZ 250 2-stroke? I have a 2001 YZ 250 2-stroke and have heard that a WR 400 trans will slip right in. I have also heard that a WR 426 trans will fit with a little mod work. I thought the 400 and 426 were the same? Or could it be that someone is jerkin my chain

  • ncampion

Posted January 18, 2006 - 07:59 PM


Wouldn't be suprised, Yamaha is the King of Interchangability. Let us know if you try it.

  • mousemeat

Posted January 19, 2006 - 02:05 AM


in australia they sell a wide ratio two stroke, the yz250wr or something like that. Get a manual for that off ebay and see what they do...

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  • Bandit9

Posted January 19, 2006 - 07:07 PM


That Aussie 250 isn't a wide ratio tranny. It is the same bike as a YZ, execpt for the lights and stuff.

Seems like I remember reading about some guy that put a WR tranny in his YZ250. I believe you just need to match up the years. That would be a sweet woods bike.

  • treebasher

Posted January 20, 2006 - 07:34 PM


My YZ is already a sweet woods bike. I would just like to make it a bit sweeter!

  • dustdogg

Posted January 20, 2006 - 07:58 PM


Yamaha used to have a WR 250 two stroke in the late 80's & early 90's :bonk: . I'm not sure when they discontinued them, but I know it was before the WR four stroke 250's & 400's came out. Now back to your original question, I think you are probably out of luck :thumbsup: but I'm sure if it's possible someone will chime in. :thumbsup:


Posted January 20, 2006 - 10:05 PM


Yup I had a 89 WR. Dont know when they stopped making them either!



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