Will a 04 yzf 250 carb work on a 99 wr400?

3 replies to this topic
  • Nash1

Posted November 13, 2006 - 06:17 PM


Hello all,
I'm asking the above question only because I'm sick of the external accl. pump on my 99. I'm well aware that I will need to change the jetting. I just would like to know if anybody out there has done this? This site is a great resource of info, thanks in advance...
Dave Nash

  • simon@vic

Posted November 13, 2006 - 09:21 PM


i think the 250s use a 37mm carb. you want the 39mm carb!

so, no!

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  • unkle_george

Posted November 14, 2006 - 01:18 PM


It will fit in the airbox boot, but is not the right inside diameter so the airflow won't be correct.
Yeah, so no.

  • simon@vic

Posted November 14, 2006 - 04:10 PM


yes i think your right^.

reguardless, you need an FCR39 and the 250s dont use them!


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