Question about wr426 at sand Mtn

5 replies to this topic
  • TuningFork426

Posted September 03, 2006 - 12:22 PM


I just got a wr 02 426 and i go to sand Mtn Nevada alot.
My previous bike was a wr250f and I liked it but not enough
power for the dunes

My question is can anyone tell me if their wr426 or similar bike
can pull 4th up the main race hill my wr250f could only pull 3rd
i was still able to beat most stock quads, i only wiegh 140lbs

02 wr426
white bro's pipe
power now valve
grey wire cut
airbox lid is off

  • wr429j

Posted September 03, 2006 - 04:07 PM


My 450 pulls 4th up that hill, I do shift to 3rd right at the top.

  • TuningFork426

Posted September 03, 2006 - 04:26 PM


how much do you wiegh and what is the gearing ??


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  • Yamaster

Posted September 03, 2006 - 07:25 PM


When my 05 450 was bone stock, except for 10 paddle tire and 13/49 gearing, I could pull 4th and then downshift to 3 at the top. I used to weigh 190. Now that I lost ten pounds, put the yfz450 quad's exhaust cam in, and a full drd exhaust and became a much better rider, I bet I can pull 4th the whole way.

  • TuningFork426

Posted September 03, 2006 - 09:33 PM


were either of your bikes jetted for sand mtn elevation??

would it make a difference??

  • Yamaster

Posted September 07, 2006 - 08:11 AM


Yes, my bike was fairly close to be jetted right. Jetting makes all the difference in the world.


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