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


James Stewart back on a YZ450F by YamaLink

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  47 replies

Snake pit oct 30th by The Anvil

Dirt Bike   Dirt Bike Regional Discussion   California
  • Hot  293 replies

05 yz450f not fast enough by RedeyeYZ

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  38 replies

Chubby dad, looking at bikes , First trip to the orange/black forum ! by Slow_ride

Dirt Bike   Make / Model Specific   KTM   250-530 EXC/MXC/SXC/XC-W/XCR-W (4-Strokes)
  • Hot  28 replies

Wilson the Blue Privateer by jetfuel

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  50 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.