do i need to rejet?


3 replies to this topic
  • japelvis

Posted August 27, 2007 - 07:15 PM

#1

I recently did the throttle stop mod and uncorked my exhaust on a 2007 wr450, do i need to rejet because i now have less backpressure?

  • KennyMc

Posted August 27, 2007 - 07:29 PM

#2

http://www.thumperta...ad.php?t=411240

The WR's come inherently lean to get them green stickered. Read this thread to see how others are jetting their bikes.:ride:

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  • xrmarty

Posted September 02, 2007 - 10:34 PM

#3

I recently did the throttle stop mod and uncorked my exhaust on a 2007 wr450, do i need to rejet because i now have less backpressure?



As said above, you need to rejet because they are jetted way too lean to pass federal emission regulations.

  • JSanfilippo

Posted September 03, 2007 - 12:50 AM

#4

What is your elevation?
Did you open the airbox?
What do you mean by "uncorking" the exhaust? Did you just drill the "baffle within a baffle" or did you remove the whole stinger? Are the internal baffles in place or did you pull those too?




 
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