From 500ft elev to 6000ft elev jetting?

2 replies to this topic
  • mx369

Posted March 10, 2011 - 05:50 PM


Going uphill about a MILE in a couple months. So we have a 10 and 09 YZ 450. What kind of jetting should I use? Or would just adding some U-4 to gas or running it straight take care of elev change?

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • ttr250dude

Posted March 10, 2011 - 06:46 PM



This would be a good place to ask too

  • YamaLink

Posted March 11, 2011 - 05:55 AM


I go from 2500 to 9000 sometimes. Jetted spot on for down low and then I turn the fuelscrew when elevation gets up (on the 09 of course).

Related Content


Yamaha YZ450F 2017 by Chris.GVS

Yamaha YZ450F 2017
  • - - - - -
  • 0 reviews

The "going back to the other darkside" adventure... by Monk

Dirt Bike   Make / Model Specific   KTM   250/350/450/505 SX-F & XC-F (4-Strokes)
  • Hot  94 replies

2016 YZ450 by CaptainKnobby

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies

Is it worth it? (Cam and High compression piston) by macgi77

Dirt Bike   Make / Model Specific   Honda   CRF 150/230 F/L
  • Hot  36 replies
WR Camshaft Swap Info - last post by jamesm113

WR Camshaft Swap Info

  • 0 replies

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.