Make my WR426 standard

4 replies to this topic
  • sampaul245

Posted May 06, 2005 - 05:17 AM


I have just got a 2001 WR426 and i want to put it back to standard. ie.jet sizes and needle position.
Is there any web sites i can get info from.


  • gregwr450f

Posted May 06, 2005 - 05:19 AM


wont or want?
Maybe do a search here.
Where in Oz are you Sam?

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  • sampaul245

Posted May 06, 2005 - 05:26 AM



  • clark4131

Posted May 06, 2005 - 05:46 AM


According to the Yamaha parts website:

Main Jet: 165
Pilot Jet: 42
Starter: 65
Main Air: 200
Pilot Air: 75

Unknown on the needle position, but the stock needle is a #DRR. Of course, this all for a US bike so who knows if it'll work for you. Good luck...SC

  • sampaul245

Posted May 06, 2005 - 05:53 AM


Thanks i have a look.
Also the top of the air box is missing should this matter
AND im find it hard to start i just cant get a good kick its killing my foot
wishing i spent that bit more and got the 450


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