Jetting-'06 YZ450F

5 replies to this topic
  • Oouthere

Posted April 15, 2006 - 04:25 PM


Many thanks to those of you that posted the 48/170 combination. Before starting my new bike I installed these and adjusted the low speed speed mixture to 2 turns and it was spot on.

How much better does it get :thumbsup:

One kick starting since the rejetting!


  • DPW

Posted April 15, 2006 - 04:47 PM


TT is a great place...send "Burned" a Christmas card!

  • NYMXer

Posted April 16, 2006 - 04:07 AM


I am grateful for learning about the rejetting here. :thumbsup:

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  • riderman329

Posted April 16, 2006 - 04:40 AM


i'm running a 165 mj a 48 pilot, stock leak jet and are the rest,
i have a ready air filter, and an aftermarket exhaust system.
My fuel screw is set at 2 turns out, in 70 degree weather.

i'm just wondering if i should move the clip up on the needle?

on the start line my bike was popping a bit, so would that help at all? or should i play with the fuel screw some more?
what about a bigger main jet like a 170 go smaller with the 160?


  • Ga426owner

Posted April 16, 2006 - 05:04 AM


In 90 degree temps yesterday the 48/170 combo worked flawlessly all day with no popping :thumbsup:

  • DPW

Posted April 16, 2006 - 05:43 AM


In 90 degree temps yesterday the 48/170 combo worked flawlessly all day with no popping :thumbsup:

Same in North Texas yesterday.

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