WR400F/426F/450F

41,454 topics in this forum

1. WR Maps Only 1 2 3 4 10

   By ggamster, January 14, 2014   

   • FuelAir
   • EfiProgrammers
   • 191 replies
   • 61,785 views
   • 
   • puffoxr
   • August 31, 2020

3. How to eliminate the 'Bog'

   By William1, September 10, 2010
   • 1 reply
   • 42,457 views
   • 
   • Shred Jesse
   • April 9, 2011

4. The dreaded 'Hanging Idle' and how to eliminate it

   By William1, September 10, 2010
   • 0 replies
   • 23,133 views
   • 
   • William1
   • September 10, 2010

5. Selecting the correct Pilot Jet and setting the Fuel Screw

   By William1, September 10, 2010
   • 0 replies
   • 27,259 views
   • 
   • William1
   • September 10, 2010

6. WR400/426/450 FAQ's

   By clark4131, November 26, 2006
   • 1 reply
   • 75,180 views
   • 
   • clark4131
   • November 28, 2006

7. WR Performance Index

   By clark4131, November 25, 2006
   • 0 replies
   • 63,564 views
   • 
   • clark4131
   • November 25, 2006

8. WR426. Exhaust too loud. No FMF Q4's FS anywhere

   By chris hodge, Thursday at 01:08 AM   

   • Yz426F
   • yz400
   • (and 5 more)

     Tagged with:

     • Yz426F
     • yz400
     • Wr400
     • Wr426F
     • fmf
     • fmfq4
     • exhuast
   • 4 replies
   • 54 views
   • 
   • galbro
   • 4 hours ago

9. 2000 WR400 - sudden loss of all mid / top power & red exhaust

   By galbro, December 31, 2020
   • 7 replies
   • 133 views
   • 
   • galbro
   • 5 hours ago

10. 2018 wr450f misfire / hesitation

    By Arctic silk, 7 hours ago
    • 0 replies
    • 8 views
    • 
    • Arctic silk
    • 7 hours ago

11. WR 426 Blue Smoke on start up

    By David Boxall, yesterday at 11:28 AM
    • 1 reply
    • 23 views
    • 
    • SteveThe Snakes
    • 20 hours ago

12. rallykit Building a Rally Bike

    By remy1080, October 8, 2020   

    • Yamaha
    • Wr450F
    • (and 1 more)

      Tagged with:

      • Yamaha
      • Wr450F
      • Rallyfairing
    • 8 replies
    • 382 views
    • 
    • remy1080
    • Yesterday at 09:49 PM

13. Rear fender bolt

    By Nick225, yesterday at 12:33 AM
    • 1 reply
    • 27 views
    • 
    • ChampWazza
    • Yesterday at 01:47 AM

14. Suspension WR450F 2016 - Rear Suspension Upgrade

    By Helder Neves, Monday at 09:48 AM
    • 4 replies
    • 90 views
    • 
    • Helder Neves
    • Thursday at 10:40 AM

15. 426 rebuild...saving another steel frame

    By throttlejunkie1, January 9
    • 2 replies
    • 101 views
    • 
    • throttlejunkie1
    • Wednesday at 01:05 AM

16. 2013 WR450F brakelight question

    By hangerbaby, June 1, 2014
    • 15 replies
    • 4,890 views
    • 
    • RiderAC
    • Tuesday at 05:01 PM

17. aftermarket fuel petcock

    By boysey, January 10
    • 2 replies
    • 68 views
    • 
    • boysey
    • Tuesday at 01:45 AM

18. Wheel locking in 1st and 5th gear on Yamaha WR450 2006

    By Austin Stancell, June 3, 2020   

    • Yamaha
    • transmission
    • (and 1 more)

      Tagged with:

      • Yamaha
      • transmission
      • WR450
    • 7 replies
    • 236 views
    • 
    • Austin Stancell
    • Monday at 05:21 AM

19. Just got a 2002 wr426f and it won’t start.

    By SuperboyAustin, December 28, 2020
    • 3 replies
    • 141 views
    • 
    • PopWill
    • Monday at 02:31 AM

20. Help !!!Red glowing exhaust WR450F

    By tonkie, August 15, 2003
    • 6 replies
    • 1,316 views
    • 
    • Bill_B
    • Monday at 01:57 AM

21. IS there a write up OR manual on the HOW To's for mapping

    By Bill_B, January 5
    • 4 replies
    • 93 views
    • 
    • Bill_B
    • Monday at 01:49 AM