08 YZ450F Jetting

5 replies to this topic
  • smithjeb

Posted September 24, 2008 - 04:17 PM


Any recommendations for base jetting settings.

2008 YZ450F - just installed Dr. D Stainless Full System

Jetting is currently stock. Ride mostly in 70-80 temps MX in Kansas City.

Total newbie when it comes to jetting so the simpler the explanation the better.

Thanks TT members.

  • grayracer513

Posted September 24, 2008 - 05:51 PM




  • smithjeb

Posted September 25, 2008 - 04:06 PM


Thanks, I looked through the jetting database already. I did not see anything that matched stock + Dr. D on an '08. Apologies if I missed it. Just wondering if anyone had any specific feedback on this particular set up.

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  • grayracer513

Posted September 25, 2008 - 05:25 PM


Not much there yet for the '08. DRD doesn't have it up on his site yet, either. I would just start playing with it. Try a 165 main and see where that goes. Todd's set up is well thought out, and may work well for you.

Look this over:


  • smithjeb

Posted September 25, 2008 - 06:48 PM


Thanks gray...yeah, I tried Dr.D's site but nothing for '08 yet. I will try 165 and report back.

  • Gerry B

Posted September 26, 2008 - 08:12 PM


stock pilot, 165 main, needle on 4th clip position. That info is direct from Doug Dubach himself.

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