WR450F AIS Kit Q's

3 replies to this topic
  • watkins

Posted October 23, 2011 - 07:48 AM


Hi All,

Im a proud owner of a brand new left over '09 WR450.. getting ready to open her up and just have a quick question. I'm at sealevel and ride mostly at sea level. I plan on getting the JD jet kit, but I also currently have the GTYR AIS Removal kit that comes with jets... I know the main, needle & pilot in JD's kit are more spot on so my question is should I put in the rest of these jets (leak jet, etc) or leave it all stock and just use the JD kit? I read the FAQ and it doesnt touch on this specific topic.

  • kawi380

Posted October 23, 2011 - 07:51 AM


I am pretty sure I have a combination of both in there. I did the AIS kit then a few months later installed the JD kit and only changed what JD directed. Not a big deal either way.

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  • Krannie McKranface

Posted October 23, 2011 - 05:46 PM


If you are taking the carb off, do yourself a favor and upgrade the accelerator pump linkage spring (Merge Racing). It is a huge improvement in throttle response.

  • KennyMc

Posted October 24, 2011 - 09:57 AM


I didn't use any of the jets from the GYTR AIS block off kit. I used all of the jets from the JDJetting kit that the instructions said to. I did this before every riding the bike and I have not had to go back into the carb since. This was back in June of '07.:thumbsup:


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