Need help quick - 07 WR450, air jet won't b ootom out


2 replies to this topic
  • Jammer

Posted March 31, 2007 - 11:42 AM

#1

I'm installing the Yamaha jets that came with the bike. Includes a 110 air jet. Dirt Bike article says it goes in mouth of carb, where there is no jet currently. There are 2 holes there - 1 is a needle air jet - I removed the stock jet & tried putting the supplied air jet in there but won't thread in (this is the hole on the left as you are looking at the carb mouth - new air jet is bigger in diameter). apparently the right hole is for this air jet, and it threads in but does not bottom out & stop.

So, is the 110 air jet necessary? What does it do? What happens if I don't use it?

all help appreciated & thanks in advance.

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  • SXP

Posted March 31, 2007 - 06:34 PM

#2

I'm installing the Yamaha jets that came with the bike. Includes a 110 air jet. Dirt Bike article says it goes in mouth of carb, where there is no jet currently. There are 2 holes there - 1 is a needle air jet - I removed the stock jet & tried putting the supplied air jet in there but won't thread in (this is the hole on the left as you are looking at the carb mouth - new air jet is bigger in diameter). apparently the right hole is for this air jet, and it threads in but does not bottom out & stop.

So, is the 110 air jet necessary? What does it do? What happens if I don't use it?

all help appreciated & thanks in advance.


If this is the GYTR AIS kit then I believe there is a recall on the AIS kit because of the very problem you noted. Contact your Yamaha dealer for the correct size jet.

  • Jammer

Posted April 01, 2007 - 08:04 AM

#3

I got the TT AIS kit & am using the needle/jets that came with the bike - in a separate bag. Anyway, got the jet installed, bike ssems to run fine. I have posted a bit more info over here:

http://www.thumperta...ad.php?t=489537




 
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