2007 YZ450's

2 replies to this topic
  • DesertRacer2

Posted May 02, 2007 - 08:00 PM


My brother and I both purchased 07 YZ450's. We both jetted to the 48/170 combo. The popping on my bike completely stopped. My brothers bike still pops. Do you think his air screw needs to be adjusted? Do you think its not on the stock setting? Thanks for your help.

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • grayracer513

Posted May 02, 2007 - 09:48 PM


Of course it needs to be adjusted. It will need to be adjusted just about anytime the weather or altitude changes significantly. You should own an an extended fuel screw for each bike.

And, you should read this:


Also, find the Common Threads sticky in the index page for this forum, and look under Fuel System for a how to on setting the pilot circuit

  • TMAC25

Posted May 02, 2007 - 11:11 PM



Related Content


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.