Need help with mod for 07 wr450

4 replies to this topic
  • cartman

Posted April 29, 2007 - 04:09 PM


Hi guys, I got the bike broke in now. I took the pea shooter out of the muffler and now I'm going to put a switch on the grey wire and cut the throttle stop screw. My question is with the carb. Can I get away with these mod's without rejetting? I really dont want to get into rejetting right now. Maybe later if I get a pipe. I trail ride mostly in the CA central valley just above sea level and dont ride as hard as I use to. Any input would be appreciated. Thanks. Oh ya, Where is the throttle stop screw on the carb?

  • clark4131

Posted April 29, 2007 - 04:26 PM


If you're running in California near sea level, you're running lean without mods. With mods it's even worse. So yes, you need to rejet or run a risk of burning up your top end...SC

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  • patrickincc

Posted April 29, 2007 - 07:07 PM


just get the gytr kit and removel all the ais crap, and you will be happy. I picked up my bike this week took all the junk off, installed the kit with and FMF Q4. All i can tell you is it runs very well.

  • rheynard

Posted April 30, 2007 - 12:03 PM


The stop screw faces rearward / slightly downward, a black cap allen head, oppisite of the throttle cable input. Your gonna love the access!!!! I used the JD kit, well worth the dollars. I live in San Diego, ride dez and mountains and i used the RED needle not the Blue (rich sputters mid range) Good Luck

  • WR450RICKO

Posted April 30, 2007 - 12:08 PM


AIS removal kit ($40) and install per the instructions. You won't need to touch it again.


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