fixing a yz 125/250 air box into a 98 yz400f

8 replies to this topic
  • Aremean

Posted August 13, 2001 - 04:23 AM


can this be done?
what else need to be changed other then the side cover and the airbox itself?


  • sirthumpalot

Posted August 13, 2001 - 06:55 AM


Unfortunately I don't have the solution for you, but just to satisfy my curiosity may I ask why you would want to do this?

  • Aremean

Posted August 14, 2001 - 02:54 AM


1)well co si heard from a lot of magazine that it helps with the air flow into the airbox. this is due to the design of the 125/250's air box
2)it also gives the bike that "factory look" and it is a cheap way to add some horses!!!

  • scoobydoo

Posted August 14, 2001 - 05:31 AM


It can be done, a lot of the works guys over here in europe used to run this setup. I would imagine that you need to use the yz 125/250 subframe too.

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  • Aremean

Posted August 14, 2001 - 08:02 AM


correct me if im wrong.

thanx for the reply anyway

  • DPW

Posted August 15, 2001 - 02:47 AM


This might help, Trick YZ400. Nice page Motoman393

  • Scott_F

Posted August 15, 2001 - 05:09 AM


Obviously this Euro dude works at a plating shop. Most of that fluff doesn't interest me, but I would like more info on the alloy tank, and that plated frame looks nice!

  • Aremean

Posted August 15, 2001 - 06:01 AM


thanx a lot for the nice pg!
but in that pic the yzf was using the original air box.
what i have in mind is similar to the one in the picture page of yz400/426 of thumpertalk or the one that team cdr boost yamaha is using ->(http://www.dackracin...s/TC_YZ250F.JPG) it is with the standard 125/250 air box.


[This message has been edited by Aremean (edited 08-15-2001).]

  • jamracing

Posted August 21, 2001 - 08:04 AM


Hell, you could save 2 pounds by putting the 125/250 2strk panels on!

01' WR426
99' YZ400
87' FZR1000
Uh, like twist the throttle...

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