Airbox opening size

6 replies to this topic
  • ballistic

Posted August 26, 2001 - 06:27 PM


Does anyone know what the airbox opening size is on WR400/426? Is it 3x3 inches?

Just wondering. Thanx in advance. :)

[This message has been edited by ballistic (edited August 27, 2001).]

  • ballistic

Posted August 27, 2001 - 05:35 AM


Anyone? HELP

  • Jason_Williams

Posted August 27, 2001 - 05:47 AM


with or with out the lid?


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  • ballistic

Posted August 27, 2001 - 06:45 AM


Without the lid. thanks

  • funktree

Posted August 27, 2001 - 10:33 AM


roughly 7 X 5 its kind of an irregular shape

  • Jason_Williams

Posted August 27, 2001 - 10:42 AM


ballistic, do you have something trick in mind? fill us in.

[This message has been edited by Jason Williams (edited August 27, 2001).]

  • ballistic

Posted August 27, 2001 - 08:46 PM


Is it really about 7x5 inches? Wow.
Well the trick thing I have in mind is I am comparing it to the DRZ airbox which is only 3x3 inches with snorkel ripped out. I suspect the DR could benefit with better breathing and a richer MJ maybe.
Because the DRZ has the same 39mm FCR as a WR, I took James Deans' advice awhile back and tryed out...

100 pilot air
48 pilot jet
1.5 turns on pilot screw (fuel screw)
EKP clip #3
200 main air jet
160 main jet (BigGun Exhaust)

This setup livened up the midrange. I wonder if the airbox was more open if that allow me to try #162 or #165MJ's?

A little off the WR topic, I know, but heck... consider it a form of flattery


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