Carburetor yz450f 07

2 replies to this topic
  • That YZ450F Guy

Posted November 21, 2011 - 08:04 AM


Do I have to remove my air box to change out the jet kit on my bike?

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  • kippieland

Posted November 23, 2011 - 02:14 PM


Unfortunately, its just easier to remove the subframe to gain greater access to the carb (stupid frame!) I have an 08 and have change the jetting a million times...its faster and a lot less stress to take the subframe off for changing the pilot and leak jet. You can get to the main without doing all that but its still challenging. I would suggesting get an Motion Pro Keihin Carb Wrench kit (http://www.motosport...HIN-CARB-WRENCH) Its a time savor. Good luck!

  • RiderX

Posted November 23, 2011 - 03:43 PM


Here's another thread about the same thing. Removing the subframe is not necessary. It's a 5 min job with the right tools:


Now, messing with the needle is whole different story. You pretty much have to take the seat and tank off.

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