YZ426 out of WR400 ?

4 replies to this topic
  • overwhelmed

Posted February 13, 2004 - 04:20 PM


Does anyone know if an '00 YZ426 motor will fit into an '00 WR400 frame and if so, what kind of modifications are necessary?

  • Hick

Posted February 13, 2004 - 05:12 PM


Does anyone know if an '04 YZ426 motor...

Well, there's no such thing as an '04 YZ 426. If you mean '04 450 motor in an '00 WR chassis I think you may run into some problems, as the cases are different. Any 426 motor should bolt directly in to your '00 WR chassis.

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  • jchantzWR400F

Posted February 14, 2004 - 09:08 AM


I don't think he said 04...Yes, the 426 should bolt right up.

  • MN_Kevin

Posted February 14, 2004 - 09:53 AM


I don't think he said 04

He edited it to correct the year.

  • Bandit420

Posted February 15, 2004 - 03:56 AM


I have a '99 WR400 frame that I just dropped an '01 YZ426 motor into, it fit right in, the only thing is the CDI has to match the stator, I had to use the WR400 stator for the lighting, the bike will only run with the 400 CDI, not the 426 CDI

but if DS lighting is not a concern you can go ether way...


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